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Karst topography is a geological formation shaped by the dissolution of a layer or layers of soluble bedrock, usually carbonate rock such as limestone or dolomite, but also in gypsum. [1] It has also been documented for weathering -resistant rocks, such as quartzite , given the right conditions. [ 2 ]
Salt karst (or 'halite karst') is developed in areas where salt is undergoing solution underground. It can lead to surface depressions and collapses which present a geo-hazard. [29] Karst areas tend to have unique types of forests. The karst terrain is difficult for humans to traverse, so that their ecosystems are often relatively undisturbed.
San Francisco Bay Area. East Bay. Oakland–Alameda County; Tri-Valley Area. Amador Valley; Livermore Valley; San Ramon Valley; Lamorinda; North Bay. Marin County. West Marin; Ross Valley; Wine Country. Napa Valley; Russian River Valley; Sonoma Valley; Telecom Valley; The Peninsula. City and County of San Francisco; San Mateo County; South Bay ...
Map of the United States with California highlighted. California is a state located in the Western United States. It is the most populous state and the third largest by area after Alaska and Texas. According to the 2020 United States Census, California has 39,538,223 inhabitants and 155,779.22 square miles (403,466.3 km 2) of land. [1]
This list of current: cities; towns, unincorporated communities; counties, and other recognized places in the U.S. state of California. Information on the number and names of counties in which the place lies, and its lower and upper ZIP code bounds, if applicable are also included.
Pages in category "Incorporated cities and towns in California" The following 200 pages are in this category, out of approximately 490 total. This list may not reflect recent changes .
Northern California usually refers to the state's northernmost 48 counties. The main population centers of Northern California include San Francisco Bay Area (which includes the cities of San Francisco, Oakland, and the largest city of the region, San Jose), and Sacramento (the state capital) as well as its metropolitan area.
This is a list of the 100 largest cities in the U.S. state of California ranked by population, based on estimates for July 1, 2023, by the United States Census Bureau. [1] Note: The population figures are for the incorporated areas of the listed cities, as opposed to metropolitan areas, urban areas, or counties.