A geographic coordinate system is a coordinate system that enables every location on Earth to be specified by a set of numbers, letters or symbols. The coordinates are often chosen such that one of the numbers represents a vertical position and two or three of the numbers represent a horizontal position; alternatively, a geographic position may be expressed in a combined three-dimensional Cartesian vector. A common choice of coordinates is latitude, longitude and elevation. To specify a location on a plane requires a map projection.
San Rafael Bay is an embayment of San Pablo Bay, located in Marin County and the northern San Francisco Bay Area, California.
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.
Marin County is a county located in the San Francisco Bay Area of the U.S. state of California. As of the 2010 census, the population was 252,409. Its county seat is San Rafael. Marin County is included in the San Francisco-Oakland-Hayward, CA Metropolitan Statistical Area across the Golden Gate Bridge from San Francisco.
The San Francisco Bay Area is a populous region surrounding the San Francisco, San Pablo and Suisun estuaries in the northern part of the U.S. state of California. Although the exact boundaries of the region vary depending on the source, the Bay Area is generally accepted to include the nine counties that border the aforementioned estuaries: Alameda, Contra Costa, Marin, Napa, San Mateo, Santa Clara, Solano, Sonoma, and San Francisco. Other sources may exclude parts of or even entire counties, or expand the definition to include neighboring counties that don't border the bay such as San Benito, San Joaquin, and Santa Cruz.
San Pablo Bay is the northern bay section of the larger San Francisco Bay, in the North Bay region.
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 type of smaller bay with a circular inlet and narrow entrance. A fjord is a particularly steep bay shaped by glacial activity.
The North Bay is a subregion of the San Francisco Bay Area, in California, United States. The largest city is Santa Rosa, which is the fifth-largest city in the Bay Area. It is the location of the Napa and Sonoma wine regions, and is the least populous and least urbanized part of the Bay Area. It consists of Marin, Napa, Solano and Sonoma counties.
San Rafael Bay is located along the Marin County coast, adjacent to the City of San Rafael.
San Rafael is a city and the county seat of Marin County, California, United States. The city is located in the North Bay region of the San Francisco Bay Area. As of the 2010 census the city's population is 57,713.
The Marin Islands are within bay. The river mouth and estuary of San Rafael Creek is located at its shoreline.
The Marin Islands are the two small islands, named East Marin and West Marin, in San Rafael Bay, an embayment of San Pablo Bay in Marin County, California.
A river mouth is the part of a river where the river debouches into another river, a lake, a reservoir, a sea, or an ocean.
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.
Bolinas Lagoon is a tidal estuary, approximately 1,100 acres (4.5 km2) in area, located in the West Marin region of Marin County, California, United States, adjacent to the town of Bolinas. It is a part of the Greater Farallones National Marine Sanctuary and is considered to be among the possible landing spots of Sir Francis Drake on the west coast of North America in 1579.
China Camp State Park is a state park of California, United States, surrounding a historic Chinese American shrimp-fishing village and a salt marsh. The park is located in San Rafael, California, on the shore of San Pablo Bay. It is known for its hiking and mountain biking trails, scenic views, and open spaces. The 1,514-acre (613 ha) park was established in 1976. A 75-acre (30 ha) district, including the shrimping village and a prehistoric shell midden, were added to the National Register of Historic Places in 1979 for having state-level significance in archaeology, architecture, commerce, settlement, and social history.
The Hyde Street Pier, at 2905 Hyde Street, is a historic ferry pier located on the northern waterfront of San Francisco, California, amidst the tourist zone of Fisherman's Wharf.
The Canal Area comprises two neighborhoods of San Rafael, California, designated by the city as the "Canal Waterfront" and the "Canal." The Canal Area is bounded on the east by San Francisco Bay, on the north by the San Rafael Canal and on the south and west by Highways 101 and I-580 and by San Quentin Ridge. Land use is split almost evenly between residential and non-residential (commercial/industrial) uses. The Canal Area provides a substantial portion of the low-income housing in Marin County, one of the most affluent counties in the United States, along with Marin City. It is also the location of transportation and waste management facilities serving Marin County and the North Bay.
The North Coast of California is the region in Northern California that lies on the Pacific coast between San Francisco Bay and the Oregon border. It commonly includes Mendocino, Humboldt, and Del Norte counties and sometimes includes two counties from the San Francisco Bay area, Marin and Sonoma.
Wildcat Canyon is a narrow linear valley just east of the Berkeley Hills in the San Francisco Bay Area, situated in Contra Costa County, California. The canyon is bounded on its east side by the San Pablo Ridge, and is drained by Wildcat Creek which runs northwest to its outlet in San Pablo Bay. Two minor lakes or ponds lie along the creek: Jewel Lake and Lake Anza. The latter was enlarged by the construction of a small dam in the mid-20th century. An active tectonic fault, the Wildcat Fault, runs the length of the canyon. Wildcat Canyon was named for the mountain lions which used to be fairly common in the area. The southern end of the canyon adjacent to the city of Berkeley was incorporated into Tilden Regional Park in the 1930s and remains a major recreation area for local residents. Another regional park, Wildcat Canyon Regional Park, is situated at the northern end of the canyon.
Baxter Creek or Stege Creek, is a three-branch creek in Richmond and El Cerrito, California, United States, forming the Baxter Creek watershed. The creek has three sources and flows from the Berkeley Hills to Stege Marsh and the San Francisco Bay. The Baxter Creek watershed at-large has 10 sources.
The Sisters are two small rock islands in San Pablo Bay, located 500 meters (1,600 ft) northeast of Point San Pedro in Marin County, California.
San Rafael Creek is a watercourse in Marin County, California, United States that discharges to San Rafael Bay, a small embayment of the San Francisco Bay. The mouth of San Rafael Creek is a channelized estuary through an industrial area. San Rafael Creek has a designation under Federal Law Section 303(d) as impaired by diazinon, the principal pollutant causing impairment designations for streams discharging to San Pablo Bay, which is the northern arm of San Francisco Bay. In September 2007, the organization Save The Bay designated San Rafael Creek as one of the top ten "worst trash hot spot" waterways flowing into the San Francisco Bay. The channel portion of San Rafael Creek below the Grand Street Bridge is dredged on a regular maintenance schedule to keep the shallow draft channel navigable. Dredge spoils are disposed of at a site near Alcatraz Island.
The Hamilton Wetland Restoration Project, now known as the Hamilton/Bel Marin Keys Wetlands Restoration is a wetlands habitat restoration project at the former Hamilton Air Force Base—Hamilton Army Airfield (1930−1988) site and adjacent Bel Marin Keys shoreline, in Marin County, California.
Point San Pablo Harbor is a marina and small community at the far end of Point San Pablo in San Pablo Bay, within Richmond, in Contra Costa County, California. It is located at 1900 Stenmark Drive, Richmond CA 94801.
San Pablo Peninsula is a peninsula in western Richmond, between San Pablo Bay and San Rafael Bay, in southwestern Contra Costa County, California.
Ross Valley is a valley in Marin County, California. The city of Ross in addition to all or portions of San Anselmo, Fairfax, Kentfield, and San Rafael are located in the valley. Mount Tamalpais is to the west, the Red Hills to the east and San Rafael Bay to the south.
Rancho Nicasio was a Mexican land grant of 56,807 acres (230 km2) granted to the Coast Miwok indigenous people in 1835, located in the present-day Marin County, California, a tract of land that stretched from San Geronimo to Tomales Bay. Today, Nicasio, California is at the heart of this location.
Rancho Las Baulines was a 8,911-acre (36.06 km2) Mexican land grant in present-day Marin County, California, given in 1846 by Governor Pío Pico to Gregorio Briones. The grant extended around Bolinas Lagoon and encompassed present-day Stinson Beach and Bolinas.
The San Jose–San Francisco–Oakland, CA Combined Statistical Area is a 12-county Combined Statistical Area (CSA) designated by the United States Office of Management and Budget in Northern California that includes the San Francisco Bay Area. The CSA is more extensive than the popular local definition of the Bay Area, which consists of only the nine counties bordering San Francisco and San Pablo Bays: Alameda, Contra Costa, Marin, Napa, San Francisco, San Mateo, Santa Clara, Solano, and Sonoma. This group of counties also elects boards for regional planning and air quality control regulation. The CSA includes San Joaquin, Santa Cruz, and San Benito counties, which do not directly border the San Francisco or San Pablo bays, but are economically connected to the other nine counties that do.
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