|
Bird Rock (Marin County, California)
Bird Rock is a rock formation and a small Pacific island west of Tomales Point in Marin County, California that is roughly . A seabird colony, the island is covered with a layer of guano. Cormorants are common on the island, and ashy petrels were found breeding there in 1972. See also *Bird Island (Marin County, California), located about to the southeast *List of islands of California 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 ... References Islands of Marin County, California Islands of the San Francisco Bay Area Islands of Northern California Geology of Marin County, California Uninhabited islands of California Rock formations of California Pacific islands of California {{MarinCountyCA-geo-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
United States
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 territories, nine Minor Outlying Islands, and 326 Indian reservations. The United States is also in free association with three Pacific Island sovereign states: the Federated States of Micronesia, the Marshall Islands, and the Republic of Palau. It is the world's third-largest country by both land and total area. It shares land borders with Canada to its north and with Mexico to its south and has maritime borders with the Bahamas, Cuba, Russia, and other nations. With a population of over 333 million, it is the most populous country in the Americas and the third most populous in the world. The national capital of the United States is Washington, D.C. and its most populous city and principal financial center is New York City. Paleo-Americ ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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 territories of the United States by population, most populous U.S. state and the List of U.S. states and territories by area, 3rd largest by area. It is also the most populated Administrative division, subnational entity in North America and the 34th most populous in the world. The Greater Los Angeles area and the San Francisco Bay Area are the nation's second and fifth most populous Statistical area (United States), urban regions respectively, with the former having more than 18.7million residents and the latter having over 9.6million. Sacramento, California, Sacramento is the state's capital, while Los Angeles is the List of largest California cities by population, most populous city in the state and the List of United States cities by population, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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 largest city is San Rafael, California, San Rafael. Marin County is across the Golden Gate Bridge from San Francisco, and is included in the San Francisco–Oakland–Berkeley, CA Metropolitan Statistical Area. Marin County's natural sites include the Muir Woods Sequoia sempervirens, redwood forest, the Marin Headlands, Stinson Beach, CA, Stinson Beach, the Point Reyes National Seashore, and Mount Tamalpais. As of 2019, Marin County had the sixth highest income per capita of all U.S. counties, at $141,735. The county is governed by the Marin County Board of Supervisors. The Marin County Civic Center was designed by Frank Lloyd Wright and draws thousands of visitors a year to guided tours of its arch and Atrium (architecture), atrium desig ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rock Formations In The United States
The following is a partial list of rock formations in the United States, organized by state. Arizona * Antelope Canyon *Canyon de Chelly National Monument ** Spider Rock *Cathedral Rock, Red Rock State Park, Sedona *Cathedral Rock (Coconino County, Arizona) * Chaistla Butte *Chiricahua National Monument Chiricahua National Monument is a unit of the National Park System located in the Chiricahua Mountains of southeastern Arizona. The monument was established on April 18, 1924, to protect its extensive hoodoos and balancing rocks. The Faraway Ra ... **Big Balanced Rock **Duck on a Rock **Mushroom Rock **Natural Bridge **Organ Pipe **Pinnacle Balanced Rock **Punch and Judy **Sea Captain *Church Rock (Arizona), Church Rock *Comb Ridge *Coyote Buttes **The Wave, Arizona, The Wave *Grand Canyon **Angels Gate **Cape Royal Trail, Angels Window **Apollo Temple **Brahma Temple (Grand Canyon), Brahma Temple **Buddha Temple **Cheops Pyramid **Chuar Butte **Coronado Butte **Deva T ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Guano
Guano (Spanish from qu, wanu) is the accumulated excrement of seabirds or bats. As a manure, guano is a highly effective fertilizer due to the high content of nitrogen, phosphate, and potassium, all key nutrients essential for plant growth. Guano was also, to a lesser extent, sought for the production of gunpowder and other explosive materials. The 19th-century seabird guano trade played a pivotal role in the development of modern input-intensive farming. The demand for guano spurred the human colonization of remote bird islands in many parts of the world. Unsustainable seabird guano mining processes can result in permanent habitat destruction and the loss of millions of seabirds. Bat guano is found in caves throughout the world. Many cave ecosystems are wholly dependent on bats to provide nutrients via their guano which supports bacteria, fungi, invertebrates, and vertebrates. The loss of bats from a cave can result in the extinction of species that rely on their guano. U ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ashy Storm-petrel
The ashy storm petrel (''Hydrobates homochroa'') is a small, scarce seabird of the storm petrel family Hydrobatidae. It breeds colonially on islands off the coasts of California and Mexico, and is one of six species of storm petrel that live and feed in the rich California Current system. Taxonomy The ashy storm petrel was first described by American ornithologist Elliott Coues in 1864. Both its common and scientific name, ''homochroa'', "uniformly colored", from Ancient Greek (h)omoia (''όμοια''), "alike" + "chroma" (''χρώμα'') "color", come from its coloration. It was formerly defined in the genus ''Oceanodroma'' before that genus was synonymized with '' Hydrobates''. Description and ecology This is a small, uniformly sooty-brown storm petrel with a forked tail, closely resembling the black storm petrel, but it is smaller and has a more fluttering style of flight, with the upstroke only becoming horizontal to the body before beginning the downstroke (other storm p ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bird Island (Marin County, California)
Bird Island is a small island between Point Bonita and Rodeo Cove in southern Marin County, California. retrieved July 6, 2008 It is located off the coast of Marin Headlands, about three miles from San Francisco. See also *Bird Rock (Marin County, California) *List of islands of CaliforniaReferences Islands of Marin County, California Islands of the San Francisco Bay Area Islands of Northern California Uninhabited islands of California Pacific islands of California {{MarinCountyCA-geo-stub ...[...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Islands Of California
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 state. Humboldt County Offshore Humboldt Bay All three islands in Humboldt Bay are located in the narrow midsection of the bay. This portion of the bay is located within the City of Eureka, California entirely within Humboldt County. Northern California San Francisco Bay Area Other islands of the San Francisco Bay Area: Farallon Islands The Farallon Islands are a group of rugged small islands over offshore from the mainland of the City and County of San Francisco, which they are also formally within. They consist of over twenty small islets divided into north, south and middle sections, as well as a major bank, Fanny Shoal. The surrounding waters were once used as a disposal site for radioactive waste. Suisun Bay a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Islands Of Marin County, California
An island (or isle) is an isolated piece of habitat that is surrounded by a dramatically different habitat, such as water. Very small islands such as emergent land features on atolls can be called islets, skerries, cays or keys. An island in a river or a lake island may be called an eyot or ait, and a small island off the coast may be called a holm. Sedimentary islands in the Ganges delta are called chars. A grouping of geographically or geologically related islands, such as the Philippines, is referred to as an archipelago. There are two main types of islands in the sea: continental and oceanic. There are also artificial islands, which are man-made. Etymology The word ''island'' derives from Middle English ''iland'', from Old English ''igland'' (from ''ig'' or ''ieg'', similarly meaning 'island' when used independently, and -land carrying its contemporary meaning; cf. Dutch ''eiland'' ("island"), German ''Eiland'' ("small island")). However, the spelling of the word ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Islands Of The San Francisco Bay Area
An island (or isle) is an isolated piece of habitat that is surrounded by a dramatically different habitat, such as water. Very small islands such as emergent land features on atolls can be called islets, skerries, cays or keys. An island in a river or a lake island may be called an eyot or ait, and a small island off the coast may be called a holm. Sedimentary islands in the Ganges delta are called chars. A grouping of geographically or geologically related islands, such as the Philippines, is referred to as an archipelago. There are two main types of islands in the sea: continental and oceanic. There are also artificial islands, which are man-made. Etymology The word ''island'' derives from Middle English ''iland'', from Old English ''igland'' (from ''ig'' or ''ieg'', similarly meaning 'island' when used independently, and -land carrying its contemporary meaning; cf. Dutch ''eiland'' ("island"), German ''Eiland'' ("small island")). However, the spelling of the word ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Islands Of Northern California
An island (or isle) is an isolated piece of habitat that is surrounded by a dramatically different habitat, such as water. Very small islands such as emergent land features on atolls can be called islets, skerries, cays or keys. An island in a river or a lake island may be called an eyot or ait, and a small island off the coast may be called a holm. Sedimentary islands in the Ganges delta are called chars. A grouping of geographically or geologically related islands, such as the Philippines, is referred to as an archipelago. There are two main types of islands in the sea: continental and oceanic. There are also artificial islands, which are man-made. Etymology The word ''island'' derives from Middle English ''iland'', from Old English ''igland'' (from ''ig'' or ''ieg'', similarly meaning 'island' when used independently, and -land carrying its contemporary meaning; cf. Dutch ''eiland'' ("island"), German ''Eiland'' ("small island")). However, the spelling of the word ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Geology Of Marin County, California
Geology () is a branch of natural science concerned with Earth and other astronomical objects, the features or rocks of which it is composed, and the processes by which they change over time. Modern geology significantly overlaps all other Earth sciences, including hydrology, and so is treated as one major aspect of integrated Earth system science and planetary science. Geology describes the structure of the Earth on and beneath its surface, and the processes that have shaped that structure. It also provides tools to determine the relative and absolute ages of rocks found in a given location, and also to describe the histories of those rocks. By combining these tools, geologists are able to chronicle the geological history of the Earth as a whole, and also to demonstrate the age of the Earth. Geology provides the primary evidence for plate tectonics, the evolutionary history of life, and the Earth's past climates. Geologists broadly study the properties and processes of Earth ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
