San Quentin, California

San Quentin State Prison (SQ) is a California Department of Corrections and Rehabilitation state prison for men, located north of San Francisco in the unincorporated place of San Quentin in Marin County. Established in 1852, and opening in 1854, San Quentin is the oldest prison in California. The state's only death row for male inmates, the largest in the United States, is located at the prison. It has a gas chamber, but since 1996, executions at the prison have been carried out by lethal injection, though the prison has not performed an execution since 2006. The prison has been featured on film, radio drama, video, podcast, and television; is the subject of many books; has hosted concerts; and has housed many notorious inmates.

Corte Madera Creek is a short stream which flows southeast for 4.5 miles (7.2 km) in Marin County, California. Corte Madera Creek is formed by the confluence of San Anselmo Creek and Ross Creek in Ross and entering a tidal marsh at Kentfield before connecting to San Francisco Bay near Corte Madera.

Triangle Marsh is a wetland of the San Francisco Bay, situated at the base of Ring Mountain at the north end of the Tiburon Peninsula in Marin County, California.Archaeological Pecked curvilinear nucleated petroglyphs, and recovery on Ring Mountain, hold significant evidence of Native American habitation and likely proof that early Miwok peoples exploited marine resources from Triangle Marsh.The 31-acre (130,000 m2) property is owned by the Marin branch of the National Audubon Society who restored upland and wetland habitats there with funding from a variety of sources. Federal endangered species, including the clapper rail and salt marsh harvest mouse, live in the Marsh.

Marin Country Day School is an independent coeducational day school serving grades K-8 located in Corte Madera, California. The student body is made up of approximately 600 students.

San Rafael Bay is an embayment of San Pablo Bay, located in Marin County and the northern San Francisco Bay Area, California.

Larkspur Landing, also known as Larkspur Ferry Terminal, is the main Golden Gate Ferry terminal in Larkspur, California, in Marin County, north of San Francisco. The terminal is a regional hub receiving heavy service from throughout the North Bay for commuter ferries south to downtown San Francisco.

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. Most of the soils in the lower watershed are clays and bay mud, resulting in a low transmissivity of groundwater. Typical vertical soil profiles in the lower watershed are four to five feet of imported fill over 60 to 65 feet (18–20 meters) of bay mud set on a basement of Franciscan Sandstone bedrock. At the mouth of San Rafael Creek, situated on the south bank, is Pickleweed Park, where shorebirds can be seen, particularly in the winter migration season.

Simms Island is a former marsh island in San Francisco Bay. It is in Marin County, California; Its coordinates are 37°57′33″N 122°30′18″W, and the United States Geological Survey (USGS) gave its elevation as 13 ft (4.0 m) in 1981. It appears as an island on a USGS map in 1897; it is labeled in a 1954 map, but fully connected to the mainland.

Wood Island is a former island in Marin County, California, formerly in the Corte Madera Creek (upstream of San Francisco Bay) but now surrounded by land. Its coordinates are 37°56′37″N 122°30′42″W, and the United States Geological Survey measured its elevation as 13 ft (4.0 m) in 1981. It appears in a 1954 USGS map of the region. In the 1960s, its principal owner was Spero Spiliotis. In 1969, the city of Larkspur passed a resolution of intent to annex the island, and in the 1970s, a ferry terminal had been proposed.

California Park is an unincorporated community in Marin County, California, United States, and a suburb of San Rafael. It lies north of San Quentin State Prison. Marin Sanitary Service is the largest tenant in the area. The community is in ZIP code 94901 and area codes 415 and 628.

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 Marin Islands are two small islands, named East Marin and West Marin, in San Rafael Bay, an embayment of San Pablo Bay in Marin County, California.