california

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California, constituent state of the United States of America. It was admitted as the 31st state of the union on September 9, 1850, and by the early 1960s it was the most populous U.S. state. No version of the origin of California’s name has been fully accepted, but there is wide support for the contention that it derived from an early 16th-century Spanish novel, Las sergas de Esplandián (“The Adventures of Esplandián”), that described a paradisiacal island full of gold and precious stones called California. The influence of the Spanish settlers of the 18th and 19th centuries is evident in California’s architecture and place-names. The capital is Sacramento. California is bounded by the U.S. state of Oregon to the north, by the states of Nevada and Arizona to the east, by the Mexican state of Baja California to the south, and by the Pacific Ocean to the west. From the rainy northern coast to the parched Colorado Desert in the south, and from the Mediterranean-like central and southern littoral to the volcanic plateau of the far northeast, California is a land of stunning physical contrasts. Both the highest and lowest points in the 48 conterminous states are in the state of California—Mount Whitney and Death Valley, respectively. The former is the culminating summit of the Sierra Nevada, one of the major mountain ranges of North America. Capital: Sacramento Population1: (2020) 39,538,223; (2024 est.) 39,431,263 Governor: Gavin Newsom (Democrat) Date Of Admission: September 9, 1850 U.S. Senators: Alex Padilla (Democrat) Adam Schiff (Democrat) Los Angeles Los AngelesDowntown Los Angeles cityscape. The fluid nature of the state’s social, economic, and political life—shaped so largely by the influx of people from other states and countries—has for centuries made California a laboratory for testing new modes of living. California’s population, concentrated mostly along the coast, is the most urban in the United States, with more than three-fourths of the state’s people living in the Los Angeles, San Francisco, and San Diego metropolitan areas. Despite its urbanization and the loss of land to industry, California still leads the country in agricultural production. About one-half of the state’s land is federally owned. National parks located throughout the state are devoted to the preservation of nature and natural resources. Area 163,695 square miles (423,967 square km). Population (2020) 39,538,223; (2024 est.) 39,431,263. Land Relief California California The heartland of California is the Central Valley, which runs for 450 miles (725 km) through the center of the state, forming a trough between the Coast Ranges to the west and the Sierra Nevada to the east. The valley is the state’s agricultural center. Its single opening is the delta through which the Sacramento and San Joaquin rivers drain into San Francisco Bay. The valley is sealed off by the Cascade Range to the northeast and by the Klamath Mountains to the northwest. In the far north the terrain is rugged and heavily forested, becoming wetter on the coastal side and drier and barren in the higher northeast. In the south the Central Valley is closed off by the transverse ranges, most notably the Tehachapi Mountains, which are regarded as a dividing wall between southern and central California. Most of eastern California is desert. The sparsely settled northeastern corner of the state is a jumble of barren plains and mountains, as well as a volcanic plateau. In the east-central region is the Trans-Sierra desert, which extends along the sheer east escarpment of the Sierra Nevada range and comprises part of the vast interstate Great Basin of the Basin and Range Province. The Trans-Sierra desert ranges from 2,000 to 7,400 feet (600 to 2,300 meters) above sea level. Its largest towns are in the Owens Valley, which was a fertile farmland until its groundwater flow was diverted to Los Angeles through a mammoth series of conduits built in 1908–13.