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Mission Bay (San Francisco)
Mission Bayhttps://www.sfcityguides.org/public_guidelines.html?article=316&submitted=TRUE&srch_text=&submitted2=true&topic= Southeastern view of San Francisco taken from Jones and California Streets in 1867 shows Mission Bay and Long Bridge. historic photo, S.F. History Center, S.F. Public Library. was a bay and the estuary of Mission Creek, on the west shore of San Francisco Bay, between Steamboat Point and Point San Quentin or Potrero Point. It is now mostly filled in and is the location of the Mission Bay neighborhood of San Francisco. History Mission Bay was a lagoon nestled inside of a +500 acre salt marsh and was occupied by year-round tidal waters. [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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 environments and are an example of an ecotone. Estuaries are subject both to marine influences such as tides, waves, and the influx of saline water, and to fluvial influences such as flows of freshwater and sediment. The mixing of seawater and freshwater provides high levels of nutrients both in the water column and in sediment, making estuaries among the most productive natural habitats in the world. Most existing estuaries formed during the Holocene epoch with the flooding of river-eroded or glacially scoured valleys when the sea level began to rise about 10,000–12,000 years ago. Estuaries are typically classified according to their geomorphological features or to water-circulation patterns. They can have many different names, such as bays, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Egret
Egrets ( ) are herons, generally long-legged wading birds, that have white or buff plumage, developing fine plumes (usually milky white) during the breeding season. Egrets are not a biologically distinct group from herons and have the same build. Biology Many egrets are members of the genera ''Egretta'' or '' Ardea'', which also contain other species named as herons rather than egrets. The distinction between a heron and an egret is rather vague, and depends more on appearance than biology. The word "egret" comes from the French word ''aigrette'' that means both "silver heron" and "brush", referring to the long, filamentous feathers that seem to cascade down an egret's back during the breeding season (also called "egrets"). Several of the egrets have been reclassified from one genus to another in recent years; the great egret, for example, has been classified as a member of either ''Casmerodius'', ''Egretta'', or ''Ardea''. In the 19th and early part of the 20th centuries, s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wetlands Of California
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 primary factor that distinguishes wetlands from terrestrial land forms or Body of water, water bodies is the characteristic vegetation of aquatic plants, adapted to the unique anoxic hydric soils. Wetlands are considered among the most biologically diverse of all ecosystems, serving as home to a wide range of plant and animal species. Methods for assessing wetland functions, wetland ecological health, and general wetland condition have been developed for many regions of the world. These methods have contributed to wetland conservation partly by raising public awareness of the functions some wetlands provide. Wetlands occur naturally on every continent. The water in wetlands is either freshwater, brackish or saltwater. The main wetland typ ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Estuaries Of California
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 environments and are an example of an ecotone. Estuaries are subject both to marine influences such as tides, waves, and the influx of saline water, and to fluvial influences such as flows of freshwater and sediment. The mixing of seawater and freshwater provides high levels of nutrients both in the water column and in sediment, making estuaries among the most productive natural habitats in the world. Most existing estuaries formed during the Holocene epoch with the flooding of river-eroded or glacially scoured valleys when the sea level began to rise about 10,000–12,000 years ago. Estuaries are typically classified according to their geomorphological features or to water-circulation patterns. They can have many different names, such as bays, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Landforms Of San Francisco
A landform is a natural or anthropogenic land feature on the solid surface of the Earth or other planetary body. Landforms together make up a given terrain, and their arrangement in the landscape is known as topography. Landforms include hills, mountains, canyons, and valleys, as well as shoreline features such as bays, peninsulas, and seas, including submerged features such as mid-ocean ridges, volcanoes, and the great ocean basins. Physical characteristics Landforms are categorized by characteristic physical attributes such as elevation, slope, orientation, stratification, rock exposure and soil type. Gross physical features or landforms include intuitive elements such as berms, mounds, hills, ridges, cliffs, valleys, rivers, peninsulas, volcanoes, and numerous other structural and size-scaled (e.g. ponds vs. lakes, hills vs. mountains) elements including various kinds of inland and oceanic waterbodies and sub-surface features. Mountains, hills, plateaux, and plains are the fou ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bays Of San Francisco Bay
A bay is a recessed, coastal body of water that directly connects to a larger main body of water, such as an ocean, a lake, or another bay. A large bay is usually called a gulf, sea, sound, or bight. A cove is a small, circular bay with a narrow entrance. A fjord is an elongated bay formed by glacial action. A bay can be the estuary of a river, such as the Chesapeake Bay, an estuary of the Susquehanna River. Bays may also be nested within each other; for example, James Bay is an arm of Hudson Bay in northeastern Canada. Some large bays, such as the Bay of Bengal and Hudson Bay, have varied marine geology. The land surrounding a bay often reduces the strength of winds and blocks waves. Bays may have as wide a variety of shoreline characteristics as other shorelines. In some cases, bays have beaches, which "are usually characterized by a steep upper foreshore with a broad, flat fronting terrace".Maurice Schwartz, ''Encyclopedia of Coastal Science'' (2006), p. 129. Bays were sig ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1906 San Francisco Earthquake
At 05:12 Pacific Standard Time on Wednesday, April 18, 1906, the coast of Northern California was struck by a major earthquake with an estimated moment magnitude of 7.9 and a maximum Mercalli intensity of XI (''Extreme''). High-intensity shaking was felt from Eureka on the North Coast to the Salinas Valley, an agricultural region to the south of the San Francisco Bay Area. Devastating fires soon broke out in San Francisco and lasted for several days. More than 3,000 people died, and over 80% of the city was destroyed. The events are remembered as one of the worst and deadliest earthquakes in the history of the United States. The death toll remains the greatest loss of life from a natural disaster in California's history and high on the lists of American disasters. Tectonic setting The San Andreas Fault is a continental transform fault that forms part of the tectonic boundary between the Pacific Plate and the North American Plate. The strike-slip fault is characterized by ma ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Patwin People
The Patwin (also Patween, Southern Wintu) are a band of Wintun people native to the area of Northern California. The Patwin comprise the southern branch of the Wintun group, native inhabitants of California since approximately 500 AD. The Patwin were bordered by the Yuki in the northwest; the Nomlaki (Wintun) in the north; the Konkow (Maiduan) in northeast; the Nisenan (Maiduan) and Plains Miwok in the east; the Bay Miwok to the south; the Coast Miwok in the southwest; and the Wappo, Lake Miwok, and Pomo in the west. The "Southern Patwins" lived between what is now Suisun, Vacaville, and Putah Creek. By 1800 they had been forced by Spanish and other European settlers into small tribal units: Ululatos (Vacaville), Labaytos (Putah Creek), Malacas (Lagoon Valley), Tolenas (Upper Suisun Valley), and Suisunes (Suisun Marsh and Plain). Patwin Indian remains were discovered at the Mondavi Center construction site beginning in 1999, and consequently the University of California, Da ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ohlone Languages
The Ohlone languages, also known as Costanoan, are a small family of indigenous languages spoken by the Ohlone people. The pre-contact distribution of these languages ranged from the southern San Francisco Bay Area to northern Monterey County. Along with the Miwok languages, they are members of the Utian language family. The most recent work suggests that Ohlone, Miwok, and Yokuts are branches of a Yok-Utian language family. Languages Ohlone comprises eight attested varieties: Awaswas, Chalon, Chochenyo (also spelt as Chocheño), Karkin, Mutsun, Ramaytush, Rumsen, and Tamyen. Overall, divergence among these languages seems to have been roughly equivalent to that among the languages of the Romance sub-family of Indo-European languages. Neighboring groups seem to have been able to understand and speak to each other. The number and geographic distribution of Ohlone language divisions partially mirrors the distribution of Franciscan missions in their original lands. While th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ohlone People
The Ohlone, formerly known as Costanoans (from Spanish meaning 'coast dweller'), are a Native American people of the Northern California coast. When Spanish explorers and missionaries arrived in the late 18th century, the Ohlone inhabited the area along the coast from San Francisco Bay through Monterey Bay to the lower Salinas Valley. At that time they spoke a variety of related languages. The Ohlone languages make up a sub-family of the Utian language family. Older proposals place Utian within the Penutian language phylum, while newer proposals group it as Yok-Utian. In pre-colonial times, the Ohlone lived in more than 50 distinct landholding groups, and did not view themselves as a single unified group. They lived by hunting, fishing, and gathering, in the typical ethnographic California pattern. The members of these various bands interacted freely with one another. The Ohlone people practiced the Kuksu religion. Prior to the Gold Rush, the northern California region ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Native Americans In The United States
Native Americans, also known as American Indians, First Americans, Indigenous Americans, and other terms, are the Indigenous peoples of the mainland United States ( Indigenous peoples of Hawaii, Alaska and territories of the United States are generally known by other terms). There are 574 federally recognized tribes living within the US, about half of which are associated with Indian reservations. As defined by the United States Census, "Native Americans" are Indigenous tribes that are originally from the contiguous United States, along with Alaska Natives. Indigenous peoples of the United States who are not listed as American Indian or Alaska Native include Native Hawaiians, Samoan Americans, and the Chamorro people. The US Census groups these peoples as " Native Hawaiian and other Pacific Islanders". European colonization of the Americas, which began in 1492, resulted in a precipitous decline in Native American population because of new diseases, wars, ethni ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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