San Francisco Bay
   HOME

TheInfoList



OR:

San Francisco Bay is a large tidal
estuary An estuary is a partially enclosed coastal body of brackish water with one or more rivers or streams flowing into it, and with a free connection to the open sea. Estuaries form a transition zone between river environments and maritime environment ...
in the
U.S. The United States of America (U.S.A. or USA), commonly known as the United States (U.S. or US) or America, is a country primarily located in North America. It consists of 50 states, a federal district, five major unincorporated territori ...
state of
California California is a U.S. state, state in the Western United States, located along the West Coast of the United States, Pacific Coast. With nearly 39.2million residents across a total area of approximately , it is the List of states and territori ...
, and gives its name to the
San Francisco Bay Area The San Francisco Bay Area, often referred to as simply the Bay Area, is a populous region surrounding the San Francisco, San Pablo, and Suisun Bay estuaries in Northern California. The Bay Area is defined by the Association of Bay Area Go ...
. It is dominated by the big cities of
San Francisco San Francisco (; Spanish language, Spanish for "Francis of Assisi, Saint Francis"), officially the City and County of San Francisco, is the commercial, financial, and cultural center of Northern California. The city proper is the List of Ca ...
, San Jose, and
Oakland Oakland is the largest city and the county seat of Alameda County, California, United States. A major West Coast port, Oakland is the largest city in the East Bay region of the San Francisco Bay Area, the third largest city overall in the Bay A ...
. San Francisco Bay drains water from approximately 40 percent of California. Water from the
Sacramento ) , image_map = Sacramento County California Incorporated and Unincorporated areas Sacramento Highlighted.svg , mapsize = 250x200px , map_caption = Location within Sacramento ...
and San Joaquin rivers, and from the
Sierra Nevada The Sierra Nevada () is a mountain range in the Western United States, between the Central Valley of California and the Great Basin. The vast majority of the range lies in the state of California, although the Carson Range spur lies primarily ...
mountains, flow into Suisun Bay, which then travels through the
Carquinez Strait The Carquinez Strait (; Spanish: ''Estrecho de Carquinez'') is a narrow tidal strait in Northern California. It is part of the tidal estuary of the Sacramento and the San Joaquin rivers as they drain into the San Francisco Bay. The strait is ...
to meet with the
Napa River The Napa River is a river approximately long in the U.S. state of California. It drains a famous wine-growing region called the Napa Valley, in the mountains north of the San Francisco Bay. Milliken Creek and Mt. Veeder watersheds are a few ...
at the entrance to
San Pablo Bay San Pablo Bay is a tidal estuary that forms the northern extension of San Francisco Bay in the East Bay and North Bay regions of the San Francisco Bay Area in northern California. Most of the Bay is shallow; however, there is a deep water c ...
, which connects at its south end to San Francisco Bay. It then connects to the
Pacific Ocean The Pacific Ocean is the largest and deepest of Earth's five oceanic divisions. It extends from the Arctic Ocean in the north to the Southern Ocean (or, depending on definition, to Antarctica) in the south, and is bounded by the continen ...
via the
Golden Gate The Golden Gate is a strait on the west coast of North America that connects San Francisco Bay to the Pacific Ocean. It is defined by the headlands of the San Francisco Peninsula and the Marin Peninsula, and, since 1937, has been spanned by t ...
strait. However, this entire group of interconnected bays is often called the ''San Francisco Bay''. The bay was designated a
Ramsar Wetland of International Importance This is the list of Wetlands of International Importance as defined by the Ramsar Convention for the conservation movement, conservation and sustainable use of wetlands, recognizing the fundamental ecological functions of wetlands and their econom ...
on February 2, 2017.


Size

The bay covers somewhere between , depending on which sub-bays (such as San Pablo Bay), estuaries,
wetland A wetland is a distinct ecosystem that is flooded or saturated by water, either permanently (for years or decades) or seasonally (for weeks or months). Flooding results in oxygen-free (anoxic) processes prevailing, especially in the soils. The ...
s, and so on are included in the measurement. The main part of the bay measures wide east-to-west and somewhere between 1 and 2 north-to-south. It is the largest Pacific estuary in the Americas. The bay was navigable as far south as San Jose until the 1850s, when hydraulic mining released massive amounts of sediment from the rivers that settled in those parts of the bay that had little or no current. Later, wetlands and inlets were deliberately filled in, reducing the Bay's size since the mid-19th century by as much as one third. Recently, large areas of wetlands have been restored, further confusing the issue of the Bay's size. Despite its value as a waterway and
harbor A harbor (American English), harbour (British English; see spelling differences), or haven is a sheltered body of water where ships, boats, and barges can be docked. The term ''harbor'' is often used interchangeably with ''port'', which is a ...
, many thousands of acres of marshy wetlands at the edges of the bay were, for many years, considered wasted space. As a result, soil excavated for building projects or
dredged Dredging is the excavation of material from a water environment. Possible reasons for dredging include improving existing water features; reshaping land and water features to alter drainage, navigability, and commercial use; constructing da ...
from channels was often dumped onto the wetlands and other parts of the bay as landfill. From the mid-19th century through the late 20th century, more than a third of the original bay was filled and often built on. The deep, damp soil in these areas is subject to soil liquefaction during earthquakes, and most of the major damage close to the Bay in the Loma Prieta earthquake of 1989 occurred to structures on these areas. The Marina District of San Francisco, hard hit by the 1989 earthquake, was built on fill that had been placed there for the Panama-Pacific International Exposition, although liquefaction did not occur on a large scale. In the 1990s, San Francisco International Airport proposed filling in hundreds more acres to extend its overcrowded international
runway According to the International Civil Aviation Organization (ICAO), a runway is a "defined rectangular area on a land aerodrome prepared for the landing and takeoff of aircraft". Runways may be a man-made surface (often asphalt concrete, as ...
s in exchange for purchasing other parts of the bay and converting them back to wetlands. The idea was, and remains, controversial. (''For further details, see the " Bay fill and depth profile" section.'') There are five large islands in San Francisco Bay.
Alameda An alameda is a Avenue (landscape), street or path lined with trees () and may refer to: Places Canada *Alameda, Saskatchewan, town in Saskatchewan **Grant Devine Dam, formerly ''Alameda Dam'', a dam and reservoir in southern Saskatchewan Chile ...
, the largest island, was created when a shipping lane was cut to form the
Port of Oakland The Port of Oakland is a major container ship facility located in Oakland, California, in the San Francisco Bay. It was the first major port on the Pacific Coast of the United States to build terminals for container ships. As of 2011 it was the f ...
in 1901. It is now a suburban community.
Angel Island Angel Island may refer to: *Angel Island (California), historic site of the United States Immigration Station, Angel Island, and part of Angel Island State Park, in San Francisco Bay, California * Angel Island, Papua New Guinea * ''Angel Island'' (n ...
was known as "
Ellis Island Ellis Island is a federally owned island in New York Harbor, situated within the U.S. states of New York and New Jersey, that was the busiest immigrant inspection and processing station in the United States. From 1892 to 1954, nearly 12 mi ...
West" because it served as the entry point for immigrants from East Asia. It is now a state park accessible by ferry. Mountainous
Yerba Buena Island Yerba Buena Island ( Spanish: ''Isla Yerba Buena'') sits in San Francisco Bay within the borders of the City and County of San Francisco. The Yerba Buena Tunnel runs through its center and connects the western and eastern spans of the San Franc ...
is pierced by a tunnel linking the east and west spans of the
San Francisco–Oakland Bay Bridge The San Francisco–Oakland Bay Bridge, known locally as the Bay Bridge, is a complex of bridges spanning San Francisco Bay in California. As part of Interstate 80 and the direct road between San Francisco and Oakland, it carries about 260,000 ...
. Attached to the north is the artificial and flat
Treasure Island ''Treasure Island'' (originally titled ''The Sea Cook: A Story for Boys''Hammond, J. R. 1984. "Treasure Island." In ''A Robert Louis Stevenson Companion'', Palgrave Macmillan Literary Companions. London: Palgrave Macmillan. .) is an adventure no ...
, site of the 1939
Golden Gate International Exposition The Golden Gate International Exposition (GGIE) (1939 and 1940), held at San Francisco's Treasure Island, was a World's Fair celebrating, among other things, the city's two newly built bridges. The San Francisco–Oakland Bay Bridge opened in 1936 ...
. From the Second World War until the 1990s, both islands served as military bases and are now being redeveloped. Isolated in the center of the Bay is
Alcatraz Alcatraz Island () is a small island in San Francisco Bay, offshore from San Francisco, California, United States. The island was developed in the mid-19th century with facilities for a lighthouse, a military fortification, and a military pris ...
, the site of the famous federal penitentiary. The federal prison on
Alcatraz Island Alcatraz Island () is a small island in San Francisco Bay, offshore from San Francisco, California, United States. The island was developed in the mid-19th century with facilities for a lighthouse, a military fortification, and a military pri ...
no longer functions, but the complex is a popular tourist site. Despite its name,
Mare Island Mare Island ( Spanish: ''Isla de la Yegua'') is a peninsula in the United States in the city of Vallejo, California, about northeast of San Francisco. The Napa River forms its eastern side as it enters the Carquinez Strait juncture with the ...
in the northern part of the bay is a peninsula rather than an island.


Geology

San Francisco Bay is thought to represent a down-warping of the Earth's crust between the
San Andreas Fault The San Andreas Fault is a continental transform fault that extends roughly through California. It forms the tectonic boundary between the Pacific Plate and the North American Plate, and its motion is right-lateral strike-slip (horizonta ...
to the west and the
Hayward Fault The Hayward Fault Zone is a right-lateral strike-slip geologic fault zone capable of generating destructive earthquakes. This fault is about long, situated mainly along the western base of the hills on the east side of San Francisco Bay. It run ...
to the east, though the precise nature of this remains under study. About 560,000 years ago, a
tectonic Tectonics (; ) are the processes that control the structure and properties of the Earth's crust and its evolution through time. These include the processes of mountain building, the growth and behavior of the strong, old cores of continents ...
shift caused the large inland
Lake Corcoran Lake Corcoran (also known as Lake Clyde, after Clyde Wahrhaftig, an American geophysicist) is an ancient lake that covered the Central Valley of California. The lake existed in the valleys of the Sacramento River and the San Joaquin River, at ...
to spill out the central valley and through the
Carquinez Strait The Carquinez Strait (; Spanish: ''Estrecho de Carquinez'') is a narrow tidal strait in Northern California. It is part of the tidal estuary of the Sacramento and the San Joaquin rivers as they drain into the San Francisco Bay. The strait is ...
, carving out sediment and forming canyons in what is now the northern part of the San Francisco Bay and Golden Gate strait. Until the last ice age, the basin which is now filled by the San Francisco Bay was a large linear valley with small hills, similar to most of the valleys of the
Coast Ranges The Pacific Coast Ranges (officially gazetted as the Pacific Mountain System in the United States) are the series of mountain ranges that stretch along the West Coast of North America from Alaska south to Northern and Central Mexico. Although th ...
. As the great ice sheets began to melt, around 11,000 years ago, the sea level started to rise. By 5000 BC the sea level rose , filling the valley with water from the Pacific. The valley became a bay, and the small hills became islands.


History

The indigenous inhabitants of the San Francisco Bay are Ohlone. The first European to see San Francisco Bay is likely
N. de Morena N. de Morena or N. de Morera, name given to him by his contemporary Fray Juan de Torquemada and by most authors, was a European Maritime pilot, ship pilot in the 1577–1580 expedition of Sir Francis Drake. In ill health, he was reportedly left at N ...
who was left at
New Albion New Albion, also known as ''Nova Albion'' (in reference to an archaic name for Britain), was the name of the continental area north of Mexico claimed by Sir Francis Drake for England when he landed on the North American west coast in 1579. Thi ...
at
Drakes Bay Drakes Bay (Coast Miwok: ''Tamál-Húye'') is a wide bay named so by U.S. surveyor George Davidson in 1875 along the Point Reyes National Seashore on the coast of northern California in the United States, approximately northwest of San Fra ...
in
Marin County, California Marin County is a County (United States), county located in the northwestern part of the San Francisco Bay Area of the U.S. state of California. As of the 2020 United States Census, 2020 census, the population was 262,231. Its county seat and ...
, by
Sir Francis Drake Sir Francis Drake ( – 28 January 1596) was an English explorer, sea captain, privateer, slave trader, naval officer, and politician. Drake is best known for his circumnavigation of the world in a single expedition, from 1577 to 1580 ( ...
in 1579 and then walked to Mexico. The first recorded European discovery of San Francisco Bay was on November 4, 1769, when Spanish explorer
Gaspar de Portolá Gaspar de Portolá y Rovira (January 1, 1716 – October 10, 1786) was a Spanish military officer, best known for leading the Portolá expedition into California and for serving as the first List of governors of California before 1850, Governor ...
, unable to find the Port of Monterey, continued north close to what is now Pacifica and reached the summit of the Sweeney Ridge, now marked as the place where he first sighted San Francisco Bay. Portolá and his party did not realize what they had discovered, thinking they had arrived at a large arm of what is now called
Drakes Bay Drakes Bay (Coast Miwok: ''Tamál-Húye'') is a wide bay named so by U.S. surveyor George Davidson in 1875 along the Point Reyes National Seashore on the coast of northern California in the United States, approximately northwest of San Fra ...
. At the time, Drakes Bay went by the name ''Bahia de San Francisco'' and thus both bodies of water became associated with the name. Eventually, the larger, more important body of water fully appropriated the name ''San Francisco Bay''. The first European to enter the bay is believed to have been the Spanish explorer
Juan de Ayala Juan Manuel de Ayala y Aranza (28 December 1745 – 30 December 1797) was a Spanish naval officer who played a significant role in the European exploration of California, since he and the crew of his ship the ''San Carlos'' are the first European ...
, who passed through the
Golden Gate The Golden Gate is a strait on the west coast of North America that connects San Francisco Bay to the Pacific Ocean. It is defined by the headlands of the San Francisco Peninsula and the Marin Peninsula, and, since 1937, has been spanned by t ...
on August 5, 1775, in his ship the ''San Carlos'' and moored in a bay of
Angel Island Angel Island may refer to: *Angel Island (California), historic site of the United States Immigration Station, Angel Island, and part of Angel Island State Park, in San Francisco Bay, California * Angel Island, Papua New Guinea * ''Angel Island'' (n ...
now known as Ayala Cove. Ayala continued to explore the Bay area and the expedition's cartographer, José de Cañizares, gathered the information necessary to produce the first map of the San Francisco Bay Area. A number of place names survive (anglicized) from that first map, including
Point Reyes Point Reyes (, meaning "Point of the Kings") is a prominent cape and popular Northern California tourist destination on the Pacific coast. Located in Marin County, it is approximately west-northwest of San Francisco. The term is often appli ...
,
Angel Island Angel Island may refer to: *Angel Island (California), historic site of the United States Immigration Station, Angel Island, and part of Angel Island State Park, in San Francisco Bay, California * Angel Island, Papua New Guinea * ''Angel Island'' (n ...
, Farallon Islands and
Alcatraz Island Alcatraz Island () is a small island in San Francisco Bay, offshore from San Francisco, California, United States. The island was developed in the mid-19th century with facilities for a lighthouse, a military fortification, and a military pri ...
. The United States seized the region from Mexico during the
Mexican–American War The Mexican–American War, also known in the United States as the Mexican War and in Mexico as the (''United States intervention in Mexico''), was an armed conflict between the United States and Mexico from 1846 to 1848. It followed the 1 ...
(1846–1848). On February 2, 1848, the Mexican province of
Alta California Alta California ('Upper California'), also known as ('New California') among other names, was a province of New Spain, formally established in 1804. Along with the Baja California peninsula, it had previously comprised the province of , but ...
was annexed to the United States with the signing of the
Treaty of Guadalupe Hidalgo The Treaty of Guadalupe Hidalgo ( es, Tratado de Guadalupe Hidalgo), officially the Treaty of Peace, Friendship, Limits, and Settlement between the United States of America and the United Mexican States, is the peace treaty that was signed on 2 ...
. A year and a half later, California requested to join the United States on December 3, 1849, and was accepted as the 31st State of the Union on September 9, 1850. In 1921, a tablet was dedicated by a group of men including
Lewis Francis Byington Lewis Francis Byington (May 24, 1868 – May 7, 1943) was an American lawyer, author, and Democratic politician who served on the San Francisco Board of Supervisors (1898–1900) and as District Attorney of San Francisco (1900–1905).''San Fr ...
, in downtown San Francisco, marking the site of the original shoreline. The tablet reads: "This tablet marks the shore line of San Francisco Bay at the time of the discovery of gold in California, January 24, 1848. Map reproduced above delineates old shore line. Placed by the Historic Landmarks committee,
Native Sons of the Golden West The Native Sons of the Golden West is a fraternal service organization founded in the U.S. state of California in 1875, dedicated to historic preservation, documentation of historic structures and places in the state, the placement of historic ...
, 1921." The Bay became the center of American settlement and commerce in the Far West through most of the remainder of the 19th century. During the
California Gold Rush The California Gold Rush (1848–1855) was a gold rush that began on January 24, 1848, when gold was found by James W. Marshall at Sutter's Mill in Coloma, California. The news of gold brought approximately 300,000 people to California fro ...
(1848–1855), San Francisco Bay suddenly became one of the world's great seaports, dominating shipping in the American West until the last years of the 19th century. The bay's regional importance increased further when the
First transcontinental railroad North America's first transcontinental railroad (known originally as the "Pacific Railroad" and later as the " Overland Route") was a continuous railroad line constructed between 1863 and 1869 that connected the existing eastern U.S. rail netwo ...
was connected to its western terminus at
Alameda An alameda is a Avenue (landscape), street or path lined with trees () and may refer to: Places Canada *Alameda, Saskatchewan, town in Saskatchewan **Grant Devine Dam, formerly ''Alameda Dam'', a dam and reservoir in southern Saskatchewan Chile ...
on September 6, 1869. The terminus was switched to the
Oakland Long Wharf The Oakland Long Wharf was an 11,000-foot railroad wharf and ferry pier along the east shore of San Francisco Bay located at the foot of Seventh Street in West Oakland. The Oakland Long Wharf was built, beginning 1868, by the Central Pacific Rail ...
two months later on November 8, 1869. In 1910, the
Southern Pacific The Southern Pacific (or Espee from the railroad initials- SP) was an American Class I railroad network that existed from 1865 to 1996 and operated largely in the Western United States. The system was operated by various companies under the ...
railroad company built the
Dumbarton Rail Bridge The Dumbarton Rail Bridge lies just to the south of the Dumbarton road bridge. Built in 1910, the rail bridge was the first structure to span San Francisco Bay, shortening the rail route between Oakland and San Francisco by . The last freight ...
, the first bridge crossing San Francisco Bay. The first automobile crossing was the Dumbarton Bridge, completed in January 1927. More crossings were later constructed – the Carquinez Bridge in May 1927, the
San Francisco–Oakland Bay Bridge The San Francisco–Oakland Bay Bridge, known locally as the Bay Bridge, is a complex of bridges spanning San Francisco Bay in California. As part of Interstate 80 and the direct road between San Francisco and Oakland, it carries about 260,000 ...
in 1936, the
Golden Gate Bridge The Golden Gate Bridge is a suspension bridge spanning the Golden Gate, the strait connecting San Francisco Bay and the Pacific Ocean. The structure links the U.S. city of San Francisco, California—the northern tip of the San Francisco Pen ...
in 1937, the Richmond–San Rafael Bridge in 1956, and the
San Mateo–Hayward Bridge The San Mateo–Hayward Bridge (commonly called the San Mateo Bridge) is a bridge crossing the American state of California's San Francisco Bay, linking the San Francisco Peninsula with the East Bay. The bridge's western end is in Foster City, ...
in 1967. During the 20th century, the bay was subject to the Reber Plan, which would have filled in parts of the bay in order to increase industrial activity along the waterfront. In 1959, the
United States Army Corps of Engineers , colors = , anniversaries = 16 June (Organization Day) , battles = , battles_label = Wars , website = , commander1 = ...
released a report stating that if current infill trends continued, the bay would be as big as a shipping channel by 2020. This news created the Save the Bay movement in 1960, which mobilized to stop the infill of wetlands and the bay in general, which had shrunk to two-thirds of its size in the century before 1961. San Francisco Bay continues to support some of the densest industrial production and urban settlement in the United States. The San Francisco Bay Area is the American West's second-largest urban area, with approximately seven million residents.


Ecology

Despite its urban and industrial character, San Francisco Bay and the
Sacramento–San Joaquin River Delta The Sacramento–San Joaquin River Delta, or California Delta, is an expansive inland river delta and estuary in Northern California. The Delta is formed at the western edge of the Central Valley by the confluence of the Sacramento and San ...
remain perhaps California's most important ecological habitats. California's
Dungeness crab The Dungeness crab (''Metacarcinus magister'') is a species of crab inhabiting eelgrass beds and water bottoms along the west coast of North America. It typically grows to across the carapace and is a popular seafood. Its common name comes from ...
,
California halibut The California halibut or California flounder (''Paralichthys californicus'') is a large-tooth flounder native to the waters of the Pacific Coast of North America from the Quillayute River in Washington to Magdalena Bay in Baja California. It f ...
, and
Pacific salmon ''Oncorhynchus'' is a genus of fish in the family Salmonidae; it contains the Pacific salmon and Pacific trout. The name of the genus is derived from the Greek ὄγκος (ónkos, “lump, bend”) + ῥύγχος (rhúnkhos, “snout”), i ...
fisheries rely on the bay as a nursery. The few remaining
salt marsh A salt marsh or saltmarsh, also known as a coastal salt marsh or a tidal marsh, is a coastal ecosystem in the upper coastal intertidal zone between land and open saltwater or brackish water that is regularly flooded by the tides. It is domin ...
es now represent most of California's remaining salt marsh, supporting a number of endangered
species In biology, a species is the basic unit of classification and a taxonomic rank of an organism, as well as a unit of biodiversity. A species is often defined as the largest group of organisms in which any two individuals of the appropriate s ...
and providing key
ecosystem services Ecosystem services are the many and varied benefits to humans provided by the natural environment and healthy ecosystems. Such ecosystems include, for example, agroecosystems, forest ecosystem, grassland ecosystems, and aquatic ecosystems. Th ...
such as filtering pollutants and
sediment Sediment is a naturally occurring material that is broken down by processes of weathering and erosion, and is subsequently transported by the action of wind, water, or ice or by the force of gravity acting on the particles. For example, sand an ...
s from the rivers. San Francisco Bay is recognized for protection by the
California Bays and Estuaries Policy The Water Quality Control Policy for the Enclosed Bays and Estuaries of California is published by the California State Water Resources Control Board as guidelines to prevent water quality degradation. The policy is revised as needed.State Water ...
, with oversight provided by the
San Francisco Estuary Partnership The San Francisco Estuary Partnership (Partnership) is one of the 28 National Estuary Programs created in the 1987 Amendments to the Clean Water Act. The Partnership is a non-regulatory federal-state-local collaboration working to restore wate ...
.State Water Resources Control Board ''Water Quality Control Policy for the Enclosed Bays and Estuaries of California'' (1974) State of California Most famously, the bay is a key link in the
Pacific Flyway The Pacific Flyway is a major north-south flyway for migratory birds in the Americas, extending from Alaska to Patagonia. Every year, migratory birds travel some or all of this distance both in spring and in fall, following food sources, heading ...
. Millions of
waterfowl Anseriformes is an order of birds also known as waterfowl that comprises about 180 living species of birds in three families: Anhimidae (three species of screamers), Anseranatidae (the magpie goose), and Anatidae, the largest family, which in ...
annually use the bay shallows as a refuge. Two
endangered species An endangered species is a species that is very likely to become extinct in the near future, either worldwide or in a particular political jurisdiction. Endangered species may be at risk due to factors such as habitat loss, poaching and inv ...
of birds are found here: the
California least tern The California least tern, ''Sternula antillarum browni'', is a subspecies of least tern that breeds primarily in bays of the Pacific Ocean within a very limited range of Southern California, in San Francisco Bay and in northern regions of Mexico ...
and the
Ridgway's Rail Ridgway's rail (''Rallus obsoletus'') is a near-threatened species of bird. It is found principally in California's San Francisco Bay to southern Baja California. A member of the rail family, Rallidae, it is a chicken-sized bird that rarely flie ...
. Exposed
bay mud Bay mud consists of thick deposits of soft, unconsolidated silty clay, which is saturated with water; these soil layers are situated at the bottom of certain estuaries, which are normally in temperate regions that have experienced cyclical glacia ...
s provide important feeding areas for
shorebird 245px, A flock of Dunlins and Red knots">Red_knot.html" ;"title="Dunlins and Red knot">Dunlins and Red knots Waders or shorebirds are birds of the order Charadriiformes commonly found wikt:wade#Etymology 1, wading along shorelines and mudflat ...
s, but underlying layers of bay mud pose geological hazards for structures near many parts of the bay perimeter. San Francisco Bay provided the nation's first wildlife refuge, Oakland's artificial
Lake Merritt Lake Merritt is a large tidal lagoon in the center of Oakland, California, just east of Downtown. It is surrounded by parkland and city neighborhoods. It is historically significant as the United States' first official wildlife refuge, designate ...
, constructed in the 1860s, and America's first urban National Wildlife Refuge, the
Don Edwards San Francisco Bay National Wildlife Refuge Don Edwards San Francisco Bay National Wildlife Refuge (DESFBNWR) is a United States National Wildlife Refuge located in the southern part of San Francisco Bay, California. The Refuge headquarters and visitor center is located in the Baylands dist ...
(SFBNWR) in 1972. The Bay is also plagued by non-native species. Salt produced from San Francisco Bay is produced in
salt evaporation pond A salt evaporation pond is a shallow artificial salt pan designed to extract salts from sea water or other brines. The Salt pans are shallow and large of size because it will be easier for sunlight to travel and reach the sea water. Natural sal ...
s and is shipped throughout the Western United States to bakeries, canneries, fisheries, cheese makers and other food industries and used to de-ice winter highways, clean kidney dialysis machines, for animal nutrition, and in many industries. Many companies have produced salt in the Bay, with the Leslie Salt Company the largest private land owner in the Bay Area in the 1940s. Low-salinity salt ponds mirror the ecosystem of the bay, with fish and fish-eating birds in abundance. Mid-salinity ponds support dense populations of
brine shrimp ''Artemia'' is a genus of aquatic crustaceans also known as brine shrimp. It is the only genus in the family Artemiidae. The first historical record of the existence of ''Artemia'' dates back to the first half of the 10th century AD from Urmia L ...
, which provide a rich food source for millions of shorebirds. Only salt-tolerant micro-algae survive in the high salinity ponds, and impart a deep red color to these ponds from the pigment within the algae protoplasm. The
salt marsh harvest mouse The salt marsh harvest mouse (''Reithrodontomys raviventris''), also known as the red-bellied harvest mouse, is an endangered rodent endemic to the San Francisco Bay Area salt marshes in California. The two distinct subspecies are both endangere ...
is an endangered species endemic to the wetlands of the San Francisco Bay with a high salt tolerance. It needs native
pickleweed Pickleweed is a common name used for two unrelated genera of flowering plants: *'' Batis'', family Bataceae *''Salicornia ''Salicornia'' is a genus of succulent, halophytic (salt tolerant) flowering plants in the family Amaranthaceae that gro ...
, which is often displaced by invasive cordgrass, for its habitat. The seasonal range of water temperature in the Bay is from January's to September's when measured at Fort Point, which is near the southern end of the
Golden Gate Bridge The Golden Gate Bridge is a suspension bridge spanning the Golden Gate, the strait connecting San Francisco Bay and the Pacific Ocean. The structure links the U.S. city of San Francisco, California—the northern tip of the San Francisco Pen ...
and at the entrance to San Francisco Bay. For the first time in 65 years, Pacific Harbor Porpoise (''Phocoena phocoena'') returned to the Bay in 2009. Golden Gate Cetacean Research, a non-profit organization focused on research on cetaceans, has developed a photo-identification database enabling the scientists to identify specific porpoise individuals and is trying to ascertain whether a healthier bay has brought their return. Pacific harbor porpoise range from
Point Conception Point Conception (Chumash: ''Humqaq'') is a headland along the Gaviota Coast in southwestern Santa Barbara County, California. It is the point where the Santa Barbara Channel meets the Pacific Ocean, and as the corner between the mostly north ...
, California, to Alaska and across to the
Kamchatka Peninsula The Kamchatka Peninsula (russian: полуостров Камчатка, Poluostrov Kamchatka, ) is a peninsula in the Russian Far East, with an area of about . The Pacific Ocean and the Sea of Okhotsk make up the peninsula's eastern and we ...
and Japan. Recent genetic studies show that there is a local stock from San Francisco to the Russian River and that eastern Pacific coastal populations rarely migrate far, unlike western Atlantic Harbor porpoise.


Pollution

Industrial, mining, and other uses of mercury have resulted in a widespread distribution in the bay, with uptake in the bay's
phytoplankton Phytoplankton () are the autotrophic (self-feeding) components of the plankton community and a key part of ocean and freshwater ecosystems. The name comes from the Greek words (), meaning 'plant', and (), meaning 'wanderer' or 'drifter'. Ph ...
and contamination of its sportfish. In January 1971, two
Standard Oil Standard Oil Company, Inc., was an American oil production, transportation, refining, and marketing company that operated from 1870 to 1911. At its height, Standard Oil was the largest petroleum company in the world, and its success made its co-f ...
tankers collided in the bay, creating an oil spill disaster, which spurred environmental protection of the bay. In November 2007, a ship named '' COSCO Busan'' collided with the San Francisco–Oakland Bay Bridge and spilled over of
bunker fuel Fuel oil is any of various fractions obtained from the distillation of petroleum (crude oil). Such oils include distillates (the lighter fractions) and residues (the heavier fractions). Fuel oils include heavy fuel oil, marine fuel oil (MFO), ...
, creating the largest oil spill in the region since 1996. The Bay was once considered a hotspot for polybrominated diphenyl ether (
PBDE Polybrominated diphenyl ethers or PBDEs, are a class of organobromine compounds that are used as flame retardants. Like other brominated flame retardants, PBDEs have been used in a wide array of products, including building materials, electronics, ...
) flame retardants used to make upholstered furniture and infant care items less flammable. PBDEs have been largely phased out and replaced with alternative phosphate flame retardants. A 2019 San Francisco Estuary Institute (SFEI) study assayed a wide range of these newer flame retardant chemicals in Bay waters, bivalve California mussels (''Mytilus californianus''), and
harbor seal The harbor (or harbour) seal (''Phoca vitulina''), also known as the common seal, is a true seal found along temperate and Arctic marine coastlines of the Northern Hemisphere. The most widely distributed species of pinniped (walruses, eared se ...
s (''Phoca vitulina'') which haul out in Corkscrew Slough on
Bair Island Bair Island is a marsh area in Redwood City, California, covering , and includes three islands: Inner, Middle and Outer islands. Bair Island is part of the larger Don Edwards San Francisco Bay National Wildlife Refuge. It is surrounded by the St ...
in
San Mateo County San Mateo County ( ), officially the County of San Mateo, is a county located in the U.S. state of California. As of the 2020 census, the population was 764,442. Redwood City is the county seat, and the third most populated city following Daly ...
, with phosphate flame retardant contaminants such as
tris(1,3-dichloro-2-propyl)phosphate Tris(1,3-dichloroisopropyl)phosphate (TDCPP) is a chlorinated organophosphate. Organophosphate chemicals have a wide variety of applications and are used as flame retardants, pesticides, plasticizers, and nerve gases. TDCPP is structurally si ...
(TDCPP) and
triphenyl phosphate Triphenyl phosphate (TPhP) is the chemical compound with the formula OP(OC6H5)3. This colourless solid is the ester (triester) of phosphoric acid and phenol. It is used as a plasticizer and a fire retardant in a wide variety of settings and produc ...
(TPhP) found at levels comparable to thresholds for aquatic toxicity.


Bay fill and depth profile

San Francisco Bay's profile changed dramatically in the late 19th century and again with the initiation of dredging by the
US Army Corps of Engineers , colors = , anniversaries = 16 June (Organization Day) , battles = , battles_label = Wars , website = , commander1 = ...
in the 20th century. Before about 1860, most bay shores (with the exception of rocky shores, such as those in Carquinez Strait; along Marin shoreline; Point Richmond; Golden Gate area) contained extensive wetlands that graded nearly invisibly from freshwater wetlands to salt marsh and then tidal mudflat. A deep channel ran through the center of the bay, following the ancient drowned river valley. In the 1860s and continuing into the early 20th century, miners dumped staggering quantities of mud and gravel from hydraulic mining operations into the upper Sacramento and San Joaquin Rivers. GK Gilbert's estimates of debris total more than eight times the amount of rock and dirt moved during construction of the Panama Canal. This material flowed down the rivers, progressively eroding into finer and finer sediment, until it reached the bay system. Here some of it settled, eventually filling in Suisun Bay, San Pablo Bay, and San Francisco Bay, in decreasing order of severity. By the end of the 19th century, these " slickens" had filled in much of the shallow bay flats, raising the entire bay profile. New marshes were created in some areas. In the decades surrounding 1900, at the behest of local political officials and following Congressional orders, the U.S. Army Corps began dredging the Sacramento and San Joaquin Rivers and the deep channels of San Francisco Bay. This work has continued without interruption ever since—an enormous federal subsidy of San Francisco Bay shipping. Some of the dredge spoils were initially dumped in the bay shallows (including helping to create
Treasure Island ''Treasure Island'' (originally titled ''The Sea Cook: A Story for Boys''Hammond, J. R. 1984. "Treasure Island." In ''A Robert Louis Stevenson Companion'', Palgrave Macmillan Literary Companions. London: Palgrave Macmillan. .) is an adventure no ...
on the former
shoal In oceanography, geomorphology, and geoscience, a shoal is a natural submerged ridge, bank, or bar that consists of, or is covered by, sand or other unconsolidated material and rises from the bed of a body of water to near the surface. It ...
s to the north of
Yerba Buena Island Yerba Buena Island ( Spanish: ''Isla Yerba Buena'') sits in San Francisco Bay within the borders of the City and County of San Francisco. The Yerba Buena Tunnel runs through its center and connects the western and eastern spans of the San Franc ...
) and used to raise islands in the Sacramento-San Joaquin Delta. The net effect of dredging has been to maintain a narrow deep channel—deeper perhaps than the original bay channel—through a much shallower bay. At the same time, most of the marsh areas have been filled or blocked off from the bay by
dikes Dyke (UK) or dike (US) may refer to: General uses * Dyke (slang), a slang word meaning "lesbian" * Dike (geology), a subvertical sheet-like intrusion of magma or sediment * Dike (mythology), ''Dikē'', the Greek goddess of moral justice * Dikes ...
. Large ships transiting the bay must follow deep underwater channels that are maintained by frequent dredging as the average depth of the bay is only as deep as a swimming pool—approximately . Between Hayward and San Mateo to San Jose it is . The deepest part of the bay is under and out of the Golden Gate Bridge, at . In the late 1990s, a 12-year harbor-deepening project for the
Port of Oakland The Port of Oakland is a major container ship facility located in Oakland, California, in the San Francisco Bay. It was the first major port on the Pacific Coast of the United States to build terminals for container ships. As of 2011 it was the f ...
began; it was largely completed by September 2009. Previously, the bay waters and harbor facilities only allowed for ships with a draft of , but
dredging Dredging is the excavation of material from a water environment. Possible reasons for dredging include improving existing water features; reshaping land and water features to alter drainage, navigability, and commercial use; constructing da ...
activities undertaken by the United States Army Corps of Engineers in partnership with the Port of Oakland succeeded in providing access for vessels with a draft. Four dredging companies were employed in the US$432 million project, with $244 million paid for with federal funds and $188 million supplied by the Port of Oakland. Some of mud from the dredging was deposited at the western edge of
Middle Harbor Shoreline Park Middle Harbor Shoreline Park (MHSP) is located on San Francisco Bay and the Port of Oakland entrance channel, west of downtown Oakland, California. It is owned and operated by the Port of Oakland. The park entrance is at the intersection of 7th S ...
to become a shallow-water
wetland A wetland is a distinct ecosystem that is flooded or saturated by water, either permanently (for years or decades) or seasonally (for weeks or months). Flooding results in oxygen-free (anoxic) processes prevailing, especially in the soils. The ...
s habitat for marine and shore life. Further dredging followed in 2011, to maintain the navigation channel. This dredging enabled the arrival of the largest
container ship A container ship (also called boxship or spelled containership) is a cargo ship that carries all of its load in truck-size intermodal containers, in a technique called containerization. Container ships are a common means of commercial intermodal ...
ever to enter the San Francisco Bay, the ''
MSC Fabiola ''Madrid Express'' (originally ''MSC Fabiola'') is a container ship built for the Hamburg based Peter Döhle Schiffahrtsgesellschaft by Samsung Heavy Industries in South Korea. The ship was initially chartered by the Mediterranean Shipping Company ...
''. Bay
pilots An aircraft pilot or aviator is a person who controls the flight of an aircraft by operating its directional flight controls. Some other aircrew members, such as navigators or flight engineers, are also considered aviators, because they a ...
trained for the visit on a simulator at the
California Maritime Academy The California State University Maritime Academy (Cal Maritime or CSU Maritime Academy) is a public university in Vallejo, California. It is one of 23 campuses in the California State University system and the only maritime academy on the Unit ...
for over a year. The ship arrived drawing less than its full draft of because it held only three-quarters of a load after its stop in Long Beach.


Transportation

San Francisco Bay was traversed by watercraft before the arrival of Europeans. Indigenous peoples used canoes to fish and clam along the shoreline. Sailing ships enabled transportation between the Bay and other parts of the world—and served as ferries and freighters within the Bay and between the Bay and inland ports, such as Sacramento and Stockton. These were gradually replaced by steam-powered vessels starting in the late 19th century. Several shipyards were established around the Bay, augmented during wartime. (e.g., the
Kaiser Shipyards The Kaiser Shipyards were seven major shipbuilding yards located on the West Coast of the United States, United States west coast during World War II. Kaiser ranked 20th among U.S. corporations in the value of wartime production contracts. The s ...
,
Richmond Shipyards The four Richmond Shipyards, in the city of Richmond, California, United States, were run by Permanente Metals and part of the Kaiser Shipyards. In World War II, Richmond built more ships than any other shipyard, turning out as many as three shi ...
) near
Richmond Richmond most often refers to: * Richmond, Virginia, the capital of Virginia, United States * Richmond, London, a part of London * Richmond, North Yorkshire, a town in England * Richmond, British Columbia, a city in Canada * Richmond, California, ...
in 1940 for
World War II World War II or the Second World War, often abbreviated as WWII or WW2, was a world war that lasted from 1939 to 1945. It involved the vast majority of the world's countries—including all of the great powers—forming two opposin ...
for construction of mass-produced, assembly line
Liberty Liberty is the ability to do as one pleases, or a right or immunity enjoyed by prescription or by grant (i.e. privilege). It is a synonym for the word freedom. In modern politics, liberty is understood as the state of being free within society fr ...
and Victory cargo ships. San Francisco Bay is spanned by nine bridges, eight of which carry cars. * The
Richmond–San Rafael Bridge The Richmond–San Rafael Bridge (also officially named the John F. McCarthy Memorial Bridge) is the northernmost of the east–west crossings of the San Francisco Bay in California, USA. Officially named after California State Senator John ...
on Interstate 580 (I-580) connects Marin and Contra Costa counties. * The
Golden Gate Bridge The Golden Gate Bridge is a suspension bridge spanning the Golden Gate, the strait connecting San Francisco Bay and the Pacific Ocean. The structure links the U.S. city of San Francisco, California—the northern tip of the San Francisco Pen ...
on U.S. Route 101/ State Route 1 (US 101/SR 1) was the largest single span suspension bridge ever built at the time of its 1937 construction. It spans the
Golden Gate The Golden Gate is a strait on the west coast of North America that connects San Francisco Bay to the Pacific Ocean. It is defined by the headlands of the San Francisco Peninsula and the Marin Peninsula, and, since 1937, has been spanned by t ...
, the strait between San Francisco and Marin County, and is the only bridge in the area not owned by the State of California. * The
San Francisco–Oakland Bay Bridge The San Francisco–Oakland Bay Bridge, known locally as the Bay Bridge, is a complex of bridges spanning San Francisco Bay in California. As part of Interstate 80 and the direct road between San Francisco and Oakland, it carries about 260,000 ...
on
I-80 Interstate 80 (I-80) is an east–west transcontinental freeway that crosses the United States from downtown San Francisco, California, to Teaneck, New Jersey, in the New York metropolitan area. The highway was designated in 1956 as one o ...
connects Alameda and San Francisco counties. * The
San Mateo–Hayward Bridge The San Mateo–Hayward Bridge (commonly called the San Mateo Bridge) is a bridge crossing the American state of California's San Francisco Bay, linking the San Francisco Peninsula with the East Bay. The bridge's western end is in Foster City, ...
on SR 92 connects Alameda and San Mateo counties. * The Dumbarton Bridge on SR 84 connects Alameda and San Mateo counties. * The Carquinez Bridge (including the
Alfred Zampa Alfred Zampa (March 12, 1905 – April 23, 2000) was an American iron worker who played a role in the construction of numerous San Francisco Bay Area bridges during the early twentieth century. John V. Robinson ''Al Zampa and the Bay Area Bridges'' ...
Memorial Bridge) on I-80 connects Contra Costa and Solano counties. * The Benicia Bridge on I-680 also connects Contra Costa and Solano counties. * The
Antioch Bridge The Antioch Bridge (officially the Senator John A. Nejedly Bridge) is an automobile, bicycle, and pedestrian bridge in the western United States. Located in northern California, it crosses the San Joaquin River- Stockton Deepwater Shipping Channe ...
on SR 160 connects Contra Costa and Sacramento counties. * The
Dumbarton Rail Bridge The Dumbarton Rail Bridge lies just to the south of the Dumbarton road bridge. Built in 1910, the rail bridge was the first structure to span San Francisco Bay, shortening the rail route between Oakland and San Francisco by . The last freight ...
is an abandoned bridge that used to carry rail traffic. The
Transbay Tube The Transbay Tube is an underwater rail tunnel that carries Bay Area Rapid Transit's four transbay lines under San Francisco Bay between the cities of San Francisco and Oakland in California. The tube is long, and attaches to twin bored tunnels ...
, an underwater rail tunnel, carries
BART Bart is a masculine given name, usually a diminutive of Bartholomew, sometimes of Barton, Bartolomeo, etc. Bart is a Dutch and Ashkenazi Jewish surname, and derives from the name ''Bartholomäus'', a German form of the biblical name ''Bartho ...
services between Oakland and San Francisco. Prior to the bridges and, later, the Transbay Tube, transbay transportation was dominated by fleets of
ferryboats A ferry is a ship, watercraft or amphibious vehicle used to carry passengers, and sometimes vehicles and cargo, across a body of water. A passenger ferry with many stops, such as in Venice, Italy, is sometimes called a water bus or water taxi ...
operated by the
Southern Pacific Railroad The Southern Pacific (or Espee from the railroad initials- SP) was an American Class I railroad network that existed from 1865 to 1996 and operated largely in the Western United States. The system was operated by various companies under the ...
and the Key System transit company. However, in recent decades, ferries have returned, primarily serving commuters from Marin County, relieving the traffic bottleneck of the Golden Gate Bridge. (See article
Ferries of San Francisco Bay San Francisco Bay in California has been served by ferries of all types for over 150 years. John Reed established a sailboat ferry service in 1826. Although the construction of the Golden Gate Bridge and the San Francisco–Oakland Bay Bridge l ...
). The bay also continues to serve as a major
seaport A port is a maritime facility comprising one or more wharves or loading areas, where ships load and discharge cargo and passengers. Although usually situated on a sea coast or estuary, ports can also be found far inland, such as Ham ...
. The
Port of Oakland The Port of Oakland is a major container ship facility located in Oakland, California, in the San Francisco Bay. It was the first major port on the Pacific Coast of the United States to build terminals for container ships. As of 2011 it was the f ...
is one of the largest cargo ports in the United States, while the
Port of Richmond The Port of Richmond, also known as the Richmond Deepwater Terminal, is located on the James River in Richmond, Virginia, United States, inland from Cape Henry and approximately northwest of Newport News, Virginia. It is located at 77° 2 ...
and the
Port of San Francisco The Port of San Francisco is a semi-independent organization that oversees the port facilities at San Francisco, California, United States. It is run by a five-member commission, appointed by the Mayor and approved by the Board of Supervisors. Th ...
provide smaller services.


Recreation

San Francisco Bay is a mecca for sailors (boats, as well as
windsurfing Windsurfing is a wind propelled water sport that is a combination of sailing and surfing. It is also referred to as "sailboarding" and "boardsailing", and emerged in the late 1960s from the aerospace and surf culture of California. Windsurfing ga ...
and
kitesurfing Kiteboarding or kitesurfing is a sport that involves using wind power with a large power kite to pull a rider across a water, land, or snow surface. It combines aspects of paragliding, surfing, windsurfing, skateboarding, snowboarding, and wak ...
), due to consistent strong westerly/northwesterly thermally-generated winds – Beaufort force 6 () is common on summer afternoons – and protection from large open ocean swells.
Yachting Yachting is the use of recreational boats and ships called ''yachts'' for racing or cruising. Yachts are distinguished from working ships mainly by their leisure purpose. "Yacht" derives from the Dutch word '' jacht'' ("hunt"). With sailboats, ...
and
yacht racing Yacht racing is a sailing sport involving sailing yachts and larger sailboats, as distinguished from dinghy racing, which involves open boats. It is composed of multiple yachts, in direct competition, racing around a course marked by buoys or ...
are popular pastimes and the San Francisco Bay Area is home to many of the world's top sailors. A shoreline bicycle and pedestrian trail known as the
San Francisco Bay Trail The San Francisco Bay Trail is a bicycle and pedestrian trail that when finished will allow continuous travel around the shoreline of San Francisco Bay. As of 2020, of the trail have been completed. When finished, the trail will be over of p ...
encircles the edge of the bay. The San Francisco Bay Area Water Trail, a growing network of launching and landing sites around the Bay for non-motorized small boat users (such as kayakers) is being developed. Parks and protected areas around the bay include
Eden Landing Ecological Reserve Eden Landing Ecological Reserve is a nature reserve in Hayward, California, Hayward and Union City, California, on the eastern shore of San Francisco Bay. The reserve is managed by the California Department of Fish and Game and comprises 5,040 acr ...
,
Hayward Regional Shoreline Hayward Regional Shoreline is a regional park located on the shores of the San Francisco Bay in Hayward, California. It is part of the East Bay Regional Parks system. The 1,713 acre park extends to the shores of San Lorenzo. Part of the park is fo ...
,
Don Edwards San Francisco Bay National Wildlife Refuge Don Edwards San Francisco Bay National Wildlife Refuge (DESFBNWR) is a United States National Wildlife Refuge located in the southern part of San Francisco Bay, California. The Refuge headquarters and visitor center is located in the Baylands dist ...
,
Hayward Shoreline Interpretive Center The Hayward Shoreline Interpretive Center is a natural history and ecology interpretive nature center located in Hayward, California. It is directly adjacent to the north side of Highway 92 as it approaches the San Mateo–Hayward Bridge, and i ...
,
Crown Memorial State Beach Crown Memorial State Beach is a state park in the city of Alameda, California on the shores of San Francisco Bay. It is operated by East Bay Regional Parks District (EBRPD), under a cooperative agreement with the State of California and the City ...
,
Eastshore State Park McLaughlin Eastshore State Park is a state park and wildlife refuge along the San Francisco Bay shoreline of the East Bay between the cities of Richmond, Albany, Berkeley, Emeryville, and Oakland. It encompasses remnant natural wetlands, rest ...
,
Point Isabel Regional Shoreline Point Isabel Regional Shoreline in Richmond, California, is operated by East Bay Regional Park District, and is a multi-use park for joggers, windsurfers, kayakers, photographers, picnickers, and people walking dogs. It has access for pedestrians ...
, Brooks Island Regional Shoreline, and César Chávez Park. The
California Office of Environmental Health Hazard Assessment The Office of Environmental Health Hazard Assessment, commonly referred to as OEHHA (pronounced oh-EEE-ha), is a specialized department within the cabinet-level California Environmental Protection Agency ( CalEPA) with responsibility for evaluatin ...
(OEHHA) has developed a safe eating advisory for fish caught in the San Francisco Bay based on levels of mercury or
PCBs Polychlorinated biphenyls (PCBs) are highly carcinogenic chemical compounds, formerly used in industrial and consumer products, whose production was banned in the United States by the Toxic Substances Control Act in 1979 and internationally by t ...
found in local species. The San Francisco Bay Area Water Trail is a planned system of designated trailheads designed to improve non-motorized small boat access to the bay. The California Coastal Conservancy approved funding in March 2011 to begin implementation of the water trail.


Gallery


See also

*
Golden Gate The Golden Gate is a strait on the west coast of North America that connects San Francisco Bay to the Pacific Ocean. It is defined by the headlands of the San Francisco Peninsula and the Marin Peninsula, and, since 1937, has been spanned by t ...
*
Golden Gate Bridge The Golden Gate Bridge is a suspension bridge spanning the Golden Gate, the strait connecting San Francisco Bay and the Pacific Ocean. The structure links the U.S. city of San Francisco, California—the northern tip of the San Francisco Pen ...
*
Hydrography of the San Francisco Bay Area The Hydrography of the San Francisco Bay Area is a complex network of watersheds, marshes, rivers, creeks, reservoirs, and bays predominantly draining into the San Francisco Bay and Pacific Ocean. Bays The largest bodies of water in the Bay Ar ...
*
Islands of San Francisco Bay This list of islands of California is organized into sections, generally arranged from north to south. The islands within each section are listed in alphabetical order. The Geographic Names Information System (GNIS) lists 527 named islands in the ...
* J.C. Barthel, who prepared "plans for the docks and other water-front improvements in the San Francisco Bay district" *
McLaughlin Eastshore State Park McLaughlin Eastshore State Park is a state park and wildlife refuge along the San Francisco Bay shoreline of the East Bay (San Francisco Bay Area), East Bay between the cities of Richmond, California, Richmond, Albany, California, Albany, Berkel ...
*
Mount Diablo Mount Diablo is a mountain of the Diablo Range, in Contra Costa County of the eastern San Francisco Bay Area in Northern California. It is south of Clayton and northeast of Danville. It is an isolated upthrust peak of , visible from most ...
* Mount Tamalpais State Park *
Napa Sonoma Marsh The Napa Sonoma Marsh is a wetland at the northern edge of San Pablo Bay, which is a northern arm of the San Francisco Bay in California, United States. This marsh has an area of 48,000 acres (194 km2), of which 13,000 acres (53 km2) are ...
*
Point Pinole Regional Shoreline Point Pinole Regional Shoreline is a regional park on the shores of the San Pablo Bay, California (the northern arm of the San Francisco Bay), in the United States. It is approximately in area, and is operated by the East Bay Regional Park Dis ...
, Richmond


References


Literature


The Bay of San Francisco: the metropolis of the Pacific Coast and its suburban cities: a history.
Volume I. by Lewis Publishing Company, Chicago, Ill. Published 189
Contains index to biographical sketches

Volume II
– Biographies


External links


''San Francisco Bay: Portrait of an Estuary'', David Sanger and John Hart, University of California Press

''The Islands of San Francisco Bay'', James A. Martin , Michael T. Lee, Down Window PressArmy Corps of Engineers Bay Model: Working scale model of the BaySF Bay Kayak, Canoe, and Boat Launch Ramp guide. A collaboratively edited guide to the SF bay.BoatingSF.com: Photos of SF Bay and its boats, plus online cruising guideSave San Francisco Bay: Protect and Restore San Francisco Baysfbaywildlife.info
Guide to San Francisco Bay wildlife
Early History of the California Coast, a National Park Service ''Discover Our Shared Heritage'' Travel ItineraryCartography & History ''The representations of San Francisco Bay: a portable harbor in the fragile geography of the North Pacific''
*'' San Francisco Estuary and Watershed Science'': a peer-reviewed online science journal {{Authority control Bays of California Bodies of water of Richmond, California San Francisco Bay watershed Estuaries of California Tourist attractions in the San Francisco Bay Area Ramsar sites in the United States Wetlands of California Bodies of water of San Francisco Bodies of water of Alameda County, California Bodies of water of Santa Clara County, California Bodies of water of Contra Costa County, California Bodies of water of Solano County, California Bodies of water of San Mateo County, California Bays of Marin County, California Estuaries of Marin County, California Bays of Contra Costa County, California