California is a U.S. state on the western coast of North America. Covering an area of 163,696 sq mi (423,970 km2), California is among the most geographically diverse states. The Sierra Nevada, the fertile farmlands of the Central Valley, and the arid Mojave Desert of the south are some of the geographic features of this U.S. state. It is home to some of the world's most exceptional trees: the tallest, most massive, and oldest. It is also home to both the highest and lowest points in the 48 contiguous states.
San Mateo County, officially the County of San Mateo, is a county in the U.S. state of California. As of the 2020 census, the population was 764,442. Redwood City is the county seat, the third-most populated city in the county after Daly City and San Mateo.
Monterey Bay is a bay of the Pacific Ocean located on the coast of the U.S. state of California, south of the San Francisco Bay Area. San Francisco itself is further north along the coast, by about 75 miles, accessible via CA 1 and US 101.
Northern California is a geographic and cultural region that comprises the northern portion of the U.S. state of California, spanning the northernmost 48 of the state's 58 counties. Northern California in its largest definition is determined by dividing the state into two regions, the other being Southern California. The main northern population centers include the San Francisco Bay Area, the Greater Sacramento area, the Redding, California, area south of the Cascade Range, and the Metropolitan Fresno area. Northern California also contains redwood forests, along with most of the Sierra Nevada, including Yosemite Valley and part of Lake Tahoe, Mount Shasta, and most of the Central Valley, one of the world's most productive agricultural regions. Northern California is also home to Silicon Valley, the global headquarters for some of the most powerful tech and Internet-related companies in the world, including Meta, Apple, Google, and Nvidia.
The northern elephant seal is one of two species of elephant seal. It is a member of the family Phocidae. Elephant seals derive their name from their great size and from the male's large proboscis, which is used in making extraordinarily loud roaring noises, especially during the mating competition. Sexual dimorphism in size is great. Correspondingly, the mating system is highly polygynous; a successful male is able to impregnate up to 50 females in one season.
Fitzgerald Marine Reserve is a marine reserve in California on the Pacific Ocean, located just north of Pillar Point Harbor and Mavericks in the San Mateo County community of Moss Beach. Moss Beach is located approximately 20 miles (32 km) south of San Francisco and 50 miles (80 km) north of Santa Cruz. The reserve is a 32-acre (0.13 km2) holding which extends from Montara light station at the north to Pillar Point on the south. The reserve consists of a three-mile stretch of beach, tidepool habitat, marsh, erosive bluffs, clifftop trail and cypress and eucalyptus forests. The property is owned by the State of California and managed by San Mateo County as a county park and nature preserve. The reserve is administratively assigned to be part of the Monterey Bay National Marine Sanctuary. Adjacent to and possibly within the reserve is an endangered species of butterfly, the San Bruno elfin butterfly.
Año Nuevo Island is a small island off Año Nuevo Point on the coast of Northern California, between San Francisco and Santa Cruz. The island has an area of 9 acres (3.6 ha). It is an important breeding site for northern elephant seals and the endangered Steller's sea lion, as well as several species of seabirds, including rhinoceros auklets, Brandt's cormorants and western gulls. Due to the number of seals and sea lions, great white sharks are frequently spotted patrolling the waters around the island. It is protected as part of the Año Nuevo State Reserve.
Portola Redwoods State Park is a 2,800 acres (1,100 ha) state park in California situated in San Mateo County. The parks' primary watercourses — Peters Creek, Pescadero Creek and their associated tributaries — converge at Portola Redwoods State Park. Tip Toe Falls is a small waterfall along Fall Creek, a tributary of Pescadero Creek.
The Monterey Bay National Marine Sanctuary (MBNMS) is a federally protected marine area offshore of California's Big Sur and central coast in the United States. It is the largest US national marine sanctuary and has a shoreline length of 276 miles (444 km) stretching from just north of the Golden Gate Bridge at San Francisco to Cambria in San Luis Obispo County. Supporting one of the world's most diverse marine ecosystems, it is home to numerous mammals, seabirds, fishes, invertebrates and plants in a remarkably productive coastal environment. The MBNMS was established on September 18, 1992, for the purpose of resource protection, research, education, and public use.
The El Vizcaíno Biosphere Reserve, created in 1988, is located in Mulegé Municipality in northern Baja California Sur, at the center of the Baja California Peninsula between the Pacific Ocean and the Gulf of California. With an area of over 24,930 km2 (9,630 sq mi)), it is the largest wildlife refuge in Mexico and borders the northern edge of the Valle de los Cirios Protected Area of Flora and Fauna.
Año Nuevo State Marine Conservation Area (SMCA) is one of two adjoining marine protected areas off the coast of San Mateo and Santa Cruz Counties, on California’s central coast. The area is approximately 55 miles (89 km) south of San Francisco. The SMCA has an area of 11.07 square miles (28.7 km2). Except for limited taking of giant kelp, all living marine resources are protected.
Tagging of Pacific Predators (TOPP) began in 2000 as one of many projects formed by Census of Marine Life, an organization whose goal is to help understand and explain the diversity and abundances of the ocean in the past, present, and future. After they were formed, TOPP began by building a coalition of researchers from all over the world to find and study predators of the Pacific Ocean. Since then, they have satellite-tagged 22 different species and more than 2,000 animals. These animals include elephant seals, great white sharks, leatherback turtles, squid, albatrosses, and more.
Montara State Marine Reserve (SMR) and Pillar Point State Marine Conservation Area (SMCA) are two adjoining marine protected areas that extend offshore from Montara to Pillar Point in San Mateo County on California’s north central coast. The combined area of these marine protected areas is 18.42 square miles (47.7 km2), with 11.76 square miles (30.5 km2) in the SMR and 6.66 in the SMCA. Montara SMR prohibits the take of all living marine resources. Pillar Point SMCA prohibits the take of all living marine resources, except the recreational and commercial take of pelagic finfish by trolling or seine, the commercial or recreational take of Dungeness crab by trap and the commercial or recreational take or market squid by hand-held dip net or round haul net.
Point Reyes State Marine Reserve (SMR) and Point Reyes State Marine Conservation Area (SMCA) are two adjoining marine protected areas that extend offshore of Point Reyes Headlands and within Drakes Bay in Marin County on California's north central coast. The combined area of these marine protected areas is 21.49 square miles (55.7 km2), with 9.38 in the SMR, and 12.11 in the adjacent SMCA. Point Reyes SMR prohibits the take of all living marine resources. Point Reyes SMCA prohibits the take of all living marine resources, except the recreational and commercial take of Dungeness crab by pot and salmon by trolling.
Piedras Blancas Light Station is located at Point Piedras Blancas, about 5.5 miles (8.9 km) west by northwest of San Simeon, California. It was added to the California Coastal National Monument in 2017.
Greyhound Rock State Marine Conservation Area (SMCA) is one of two adjoining marine protected areas off the coast of San Mateo County and Santa Cruz County, on California's central coast. The area is approximately 55 miles (89 km) south of San Francisco. The SMCA is 11.81 square miles (30.6 km2). Within the SMCA fishing and take of all living marine resources is prohibited except the recreational take of giant kelp, squid, salmon, and other finfish, subject to various conditions. Also permitted is the commercial take of giant kelp, salmon, and squid, subject to various conditions.
There are nine national parks located in the state of California managed by the National Park Service. National parks protect significant scenic areas and nature reserves, provide educational programs, community service opportunities, and are an important part of conservation efforts in the United States. There are several other locations inside of California managed by the National Park Service, but carry other designations such as National Monuments. Many of the national parks in California are also part of national forests and National Wildlife Refuges, and contain Native American Heritage Sites and National Monuments.
Many coastal peninsulas of California are properly headlands and are often called points, as in Oxford English Dictionary's senses 19b "projecting part of anything of a more or less tapering form...a sharp prominence" and 22 "a promontory or cape; the tip of a piece of land running out to sea...frequently in place names."
