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Point Reyes National Seashore
Point Reyes National Seashore is a park preserve located on the Point Reyes, Point Reyes Peninsula in Marin County, California. As a national seashore, it is maintained by the US United States National Park Service, National Park Service as an important nature preserve. No other park in the world hosts breeding hoofed megafauna (elk) and marine megafauna (elephant seal, elephant and other seals). Some existing agricultural uses are allowed to continue within the park. Clem Miller, a US Congressman from Marin County, California, Marin County, wrote and introduced the bill for the establishment of Point Reyes National Seashore in 1962 to protect the peninsula from development which was proposed at the time for the slopes above Drake's Bay. About half of the national seashore is protected as wilderness. History The Native American Coast Miwok lived in the area for thousands of years, in villages of seventy five to several hundred people. The Coast Miwok developed an economy of h ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Drakes Bay
Drakes Bay ( Coast Miwok: ''Tamál-Húye'') is a bay along the Point Reyes National Seashore on the coast of northern California in the United States, approximately northwest of San Francisco at approximately 38 degrees north latitude. The bay is approximately wide. It is formed on the lee side of the coastal current by Point Reyes. An alternative name for this bay is ''Puerto De Los Reyes''. Naming The bay was named by English-born American surveyor George Davidson in 1875, after Sir Francis Drake. It has long been considered Drake's most likely landing spot on the west coast of North America during his circumnavigation of the world by sea in 1579. Description The bay is fed by Drake's Estero, an expansive estuary on the Point Reyes peninsula. The estuary is protected by Estero de Limantour State Marine Reserve & Drakes Estero State Marine Conservation Area. Point Reyes State Marine Reserve & Point Reyes State Marine Conservation Area lie within Drakes Bay. Like und ... [...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. Marin is one of the List of highest-income counties in the United States, highest-income counties by per capita income and median household income. 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 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Migrate
Migration, migratory, or migrate may refer to: Human migration * Human migration, physical movement by humans from one region to another ** International migration, when peoples cross state boundaries and stay in the host state for some minimum length of time Natural sciences Biology * Migration (ecology), the large-scale movement of species from one environment to another ** Animal migration ** Bird migration * Plant migration, see Seed dispersal, the movement or transport of seeds away from the parent plant * Gene migration, a process in evolution and population genetics * Cell migration, a process in the development and maintenance of multicellular organisms ** Collective cell migration, describing the movements of group of cells Physics and chemistry * Molecular diffusion, in physics * Migration (chemistry), type of reaction in organic chemistry * Seismic migration, in seismic and ground penetrating radar data processing * Microscopic motion of material caused by an external ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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 seals, and true seals), they are found in coastal waters of the northern Atlantic and Pacific oceans, Baltic and North seas. Harbour seals are brown, silvery white, tan, or grey, with distinctive V-shaped nostrils. An adult can attain a length of 1.85 m (6.1 ft) and weigh up to . Blubber under the seal's skin helps to maintain body temperature. Females outlive males (30–35 years versus 20–25 years). Harbor seals stick to familiar resting spots or haulout sites, generally rocky areas (although ice, sand, and mud may also be used) where they are protected from adverse weather conditions and predation, near a foraging area. Males may fight over mates under water and on land. Females bear a single pup after a nine-month gestation, w ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Endangered
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, invasive species, and climate change. The International Union for Conservation of Nature (IUCN) Red List lists the global conservation status of many species, and various other agencies assess the status of species within particular areas. Many nations have laws that protect conservation-reliant species which, for example, forbid hunting, restrict land development, or create protected areas. Some endangered species are the target of extensive conservation efforts such as captive breeding and habitat restoration. Human activity is a significant cause in causing some species to become endangered. Conservation status The conservation status of a species indicates the likelihood that it will become extinct. Multiple factors are c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rare Species
A rare species is a group of organisms that are very uncommon, scarce, or infrequently encountered. This designation may be applied to either a plant or animal taxon, and is distinct from the term ''endangered species, endangered'' or ''threatened species, threatened.'' Designation of a rare species may be made by an official body, such as a national government, state, or province. The term more commonly appears without reference to specific criteria. The International Union for Conservation of Nature does not normally make such designations, but may use the term in scientific discussion. Rarity rests on a specific species being represented by a small number of organisms worldwide, usually fewer than 10,000. However, a species having a very narrow Endemic (ecology), endemic range or Habitat fragmentation, fragmented habitat also influences the concept. Almost 75% of known species can be classified as "rare". Rare species are species with small populations. Many will move into the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Olema, California
Olema (Miwok: ''Olemaloke'') is an unincorporated community in Marin County, California. It is located on Olema Creek south-southeast of Point Reyes Station, at an elevation of 69 feet (21 m). Olema is along State Route 1 at its intersection with Sir Francis Drake Boulevard, on the eastern edge of the Point Reyes Peninsula in the western part of Marin County. The name Olema comes from the Coast Miwok placename meaning "coyote valley". Olema was once thought to be the epicenter of the 1906 San Francisco earthquake due the fact that the San Andreas Fault runs in very close proximity to the town, and due to the huge rifts surrounding the fault still visible via a nearby hiking path. There are historical references to this in and around the town, including at shops and restaurants. However, more recent evidence suggests that a location offshore of Daly City is more likely the epicenter. Olema was also the title subject of the late-1960s country-rock song "Hippie from Olema ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Inverness, California
Inverness is an unincorporated community and census-designated place (CDP) in western Marin County, California, United States. It is located on the southwest shore of Tomales Bay northwest of Point Reyes Station and about by road northwest of San Francisco, at an elevation of . In the 2020 census, the population was 1,379. The community was named by a Scottish landowner after Inverness in Scotland. Community Inverness is located on the west shore of Tomales Bay, which runs southeast along the line of the San Andreas Fault. Surrounded by Point Reyes National Seashore, it is primarily a residential community, with little industry other than tourism. It has a small downtown area with a general store, post office, library, two restaurants, one gift shop and a coffee shop. A third restaurant is located a short way north of downtown. There are also a number of hotels and inns spread throughout the town. One aspect of the town is a concentration of recreational (and some comme ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Franciscan Complex
The Franciscan Complex or Franciscan Assemblage is a geology, geologic term for a late Mesozoic terrane of heterogeneous rock (geology), rocks found throughout the California Coast Ranges, and particularly on the San Francisco Peninsula. It was named by geologist Andrew Lawson, who also named the San Andreas Fault that defines the western extent of the assemblage. The Franciscan Complex is dominated by greywacke sandstones, shales and Conglomerate (geology), conglomerates which have experienced low-grade metamorphism. Other important lithologies include chert, basalt, limestone, serpentinite, and high-pressure, low-temperature metabasites (blueschists and eclogites) and meta-limestones. Fossils like radiolaria are found in chert beds of the Franciscan Complex. These fossils have been used to provide age constraints on the different terranes that constitute the Franciscan. The mining opportunities within the Franciscan are restricted to deposits of cinnabar and limestone. The ou ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Salinian Block
The Salinian Block or Salinian terrane is a geologic terrane which lies west of the main trace of the San Andreas Fault system in California. It is bounded on the south by the Big Pine Fault in Ventura County and on the west by the Nacimiento Fault. It was named for the Salinas Valley in Monterey County, California. Geology The Salinian Block is largely granitic, in accordance with its continental crustal origin. This composition contrasts sharply, and paradoxically, with much of the crust to its east, which is sedimentary and oceanic in origin. The block's granitic core, fragments of the batholith of the Peninsular Ranges, shares its origins with the Sierra Nevada mountains far to the east. During the past 30 million years the North American Plate has been overriding the East Pacific Rise and transform faulting along the developing San Andreas fault zone. Successive "stretched out" slivers of the Sierra Nevada - the Peninsular Batholith - have been and currently still are ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tomales Bay
Tomales Bay is a long, narrow inlet of the Pacific Ocean in Marin County in northern California in the United States. Geography Tomales Bay is approximately long and averages nearly wide, with relatively shallow depths averaging 18 ft, effectively separating the Point Reyes Peninsula from the mainland of Marin County. It is located approximately northwest of San Francisco. The bay forms the eastern boundary of Point Reyes National Seashore. Tomales Bay is recognized for protection by the California Bays and Estuaries Policy.State Water Resources Control Board ''Water Quality Control Policy for the Enclosed Bays and Estuaries of California'' (1974) State of California On its northern end, it opens out onto Bodega Bay, which shelters it from the direct currents of the Pacific (especially the California Current). The bay is formed along a submerged portion of the San Andreas Fault. The fault divides the Point Reyes Peninsula through Tomales Bay in the north, and the Bolina ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
San Andreas Fault
The San Andreas Fault is a continental Fault (geology)#Strike-slip faults, right-lateral strike-slip transform fault that extends roughly through the U.S. state of California. It forms part of the tectonics, tectonic boundary between the Pacific plate and the North American plate. Traditionally, for scientific purposes, the fault has been classified into three main segments (northern, central, and southern), each with different characteristics and a different degree of earthquake risk. The average slip rate along the entire fault ranges from per year. In the north, the fault terminates offshore near Eureka, California, at the Mendocino triple junction, where three tectonic plates meet. The Cascadia subduction zone intersects the San Andreas fault at the Mendocino triple junction. It has been hypothesized that a major earthquake along the Cascadia subduction zone could trigger a rupture along the San Andreas Fault. In the south, the fault terminates near Bombay Beach, Califor ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
