Rat Rock (California)

Last updated
Rat Rock
Rat Rock 3655.jpg
Rat Rock, as seen looking north from China Camp in May 2010.
Location Map San Francisco Bay Area.png
Red pog.svg
Rat Rock
USA California location map.svg
Red pog.svg
Rat Rock
Usa edcp location map.svg
Red pog.svg
Rat Rock
Geography
Location Northern California
Coordinates 38°00′16″N122°27′43″W / 38.00444°N 122.46194°W / 38.00444; -122.46194 (Rat Rock) [1] Coordinates: 38°00′16″N122°27′43″W / 38.00444°N 122.46194°W / 38.00444; -122.46194 (Rat Rock) [1]
Highest elevation18 ft (5.5 m)
Administration
StateFlag of California.svg  California
County Marin

Rat Rock is an uninhabited, 18-foot (5.5 m) tall rock island in the San Francisco Bay, located just north of China Camp. It serves to protect part of the beach at China Camp from winds which come from the northwest. [2] It appears on a 2015 United States Geological Survey map of the area. [3]

Related Research Articles

Angel Island (California) Island in San Francisco Bay

Angel Island is an island in San Francisco Bay. Originally the home of a military installation, the island now offers the public picturesque views of the San Francisco skyline, the Marin County Headlands and Mount Tamalpais. The entire island is included within Angel Island State Park, administered by California State Parks. The island, a California Historical Landmark, has been used for a variety of purposes, including military forts, a US Public Health Service quarantine station, and a US Bureau of Immigration inspection and detention facility. The Angel Island Immigration Station, on the northeast corner of the island, which has been designated a National Historic Landmark, was where officials detained, inspected, and examined approximately one million immigrants, who primarily came from Asia. Under the Chinese Exclusion act of 1882, the first U.S. law to restrict a group of immigrants based on their race, nationality, and class, all arriving Chinese immigrants were to be examined by immigration or customs agents.

Interstate 880 (I-880) is a north–south auxiliary Interstate Highway in the San Francisco Bay Area of Northern California. It runs from I-280 and State Route 17 (SR 17) in San Jose to I-80 and I-580 in Oakland, running parallel to the eastern shore of San Francisco Bay. For most of its route, I-880 is officially known as the Nimitz Freeway, after World War II fleet admiral Chester Nimitz, who retired to the Bay Area. The northernmost five miles is also commonly referred to as the Cypress Freeway, after the former alignment of the freeway, and its subsequent replacement.

Sucia Island

Sucia Island is located 2.5 miles (4.0 km) north of Orcas Island in the San Juan Islands, San Juan County, Washington, United States. It is the largest of an archipelago of ten islands including Sucia Island, Little Sucia, Ewing, Justice, Herndon, the Cluster Islands islets, and several smaller, unnamed islands. The group of islands is about 2.5 miles (4.0 km) in length and just short of a half mile wide. Sucia island is roughly the shape of a hand. The total land area of all islands is 2.74 km². The main island of Sucia Island by itself is 2.259 km². There was a permanent population of four persons as of the 2000 census, all on Sucia Island. Sucia Island State Park is a Washington State Marine Park.

Red Rock Island

Red Rock Island is an uninhabited, 5.8-acre (2.3 ha) island in the San Francisco Bay located just south of the Richmond–San Rafael Bridge. The property is the only privately owned island in San Francisco Bay. The boundaries of three counties – San Francisco, Marin, and Contra Costa – converge on the island. The San Francisco County portion is an incorporated part of the city of San Francisco since it is a consolidated city-county; the Contra Costa portion is incorporated inside the city limits of Richmond.

Redwood Creek (San Mateo County)

Redwood Creek is a 9.5-mile-long (15.3 km) perennial stream located in San Mateo County, California, United States which discharges into South San Francisco Bay. The Port of Redwood City, the largest deepwater port in South San Francisco Bay, is situated on the east bank of Redwood Creek near its mouth, where the creek becomes a natural deepwater channel.

Mowry Slough

Mowry Slough is a 5.8-mile-long (9.3 km) slough in Don Edwards San Francisco Bay National Wildlife Refuge and is the primary breeding ground for San Francisco Bay harbor seals. It is situated among the salt marshes and salt evaporation ponds in the city of Fremont.

Browns Island (Contra Costa County)

Browns Island is a regional preserve of the East Bay Regional Park District (EBRPD) in Pittsburg, Contra Costa County, California, United States. It is an island in Suisun Bay, part of the Sacramento-San Joaquin River Delta, separated from Pittsburg by New York Slough.

Roe Island

Roe Island is an island in Suisun Bay at the mouth of the Sacramento-San Joaquin River Delta in Solano County, California, 10 km east of Benicia. Its western tip is named Preston Point, and its eastern tip is Gillespie Point. It is shown, labeled "Preston Island", on an 1850 survey map of the San Francisco Bay area made by Cadwalader Ringgold and an 1854 map of the area by Henry Lange. It is labeled, along with Deadman Island, Joice Island, Grizzly Island, Simmons Island and Ryer Island, on a 1902 USGS map of the area.

Atascadero Creek (Sonoma County, California)

Atascadero Creek is an 8.8-mile-long (14.2 km) north-flowing stream in Sonoma County, California, United States, which empties into Green Valley Creek.

1868 Hayward earthquake 1868 earthquake in the San Francisco Bay Area, California, United States

The 1868 Hayward earthquake occurred in the San Francisco Bay Area, California, United States on October 21. With an estimated moment magnitude of 6.3–6.7 and a maximum Mercalli intensity of IX (Violent), it was the most recent large earthquake to occur on the Hayward Fault Zone. It caused significant damage and a number of deaths throughout the region, and was known as the "Great San Francisco earthquake" prior to the 1906 San Francisco earthquake and fire.

Simmons Island Island in California

Simmons Island is a small island in Grizzly Bay in the San Francisco Bay Area of California. It is part of Solano County, and included within Reclamation District 2127. Its coordinates are 38°05′49″N121°59′26″W. It is shown as "Simmons Island" on an 1850 survey map of the San Francisco Bay area made by Cadwalader Ringgold, and as "Simons Island" on an 1854 map of the area by Henry Lange. It is labeled, along with Deadman Island, Joice Island, Grizzly Island, Ryer Island and Roe Island, on a 1902 USGS map of the area.

Coney Island (California) Island in California

Coney Island is a small island in the San Joaquin River delta, in California. It is part of Contra Costa County, and managed by Reclamation District 2117. Its coordinates are 37.8457598°N 121.5493939°W. It appears on a 1978 United States Geological Survey map of the area.

Kimball Island Island in California

Kimball Island is a small island in the Sacramento–San Joaquin River Delta. It is part of Sacramento County, California. Its coordinates are 38°01′38″N121°49′00″W, and the United States Geological Survey measured its elevation as 0 ft (0 m) in 1981.

Orwood Tract Island in California

The Orwood Tract is an island in the Sacramento–San Joaquin River Delta. It is part of Contra Costa County, California. It, along with Palm Tract to the north, are managed by Reclamation District 2024. Its coordinates are 37°55′42″N121°35′00″W, and the United States Geological Survey measured its elevation as 13 ft (4.0 m) in 1981. It appears on 1913 and 1952 United States Geological Survey maps of the area.

Palm Tract Island in California

The Palm Tract is an island in the Sacramento–San Joaquin River Delta. It is part of Contra Costa County, California. It, along with Orwood Tract to the south, are managed by Reclamation District 2024. Its coordinates are 37°57′14″N121°35′22″W, and the United States Geological Survey measured its elevation as 10 ft (3.0 m) in 1981. It appears on 1913 and 1952 United States Geological Survey maps of the area.

Holland Tract Island in California

The Holland Tract is an island in the Sacramento–San Joaquin River Delta. It is part of Contra Costa County, California, and managed by Reclamation District 2025. Its coordinates are 37°59′55″N121°36′08″W, and the United States Geological Survey measured its elevation as 7 ft (2.1 m) in 1981. It appears on a 1952 United States Geological Survey map of the area.

Spinner Island Island in California

Spinner Island is an island in Suisun Bay, an embayment of San Francisco Bay, downstream of the Sacramento–San Joaquin River Delta. It is part of Solano County, California, and not managed by any reclamation district. Its coordinates are 38°04′11″N121°52′10″W, and the United States Geological Survey measured its elevation as 0 ft (0 m) in 1981. It is shown in an 1850 survey map of the San Francisco Bay area made by Cadwalader Ringgold, as well as an 1854 map of the area by Henry Lange.

Jakes Island Island in California

Jakes Island is an island in San Francisco Bay. It is in Marin County, California. Its coordinates are 38°00′47″N122°29′20″W, and the United States Geological Survey gave its elevation as 52 ft (16 m) in 1999. It appears on a 2015 United States Geological Survey map of the area.

References

  1. 1 2 U.S. Geological Survey Geographic Names Information System: Rat Rock
  2. Stienstra, Tom (29 October 2020). "Best 10 places to swim in San Francisco Bay". The San Francisco Chronicle.
  3. United States Geological Survey (2015). "Petaluma Point Quadrangle, California" (Map). United States Department of the Interior Geological Survey. 1:24000.