The Mayacamas Mountains are located in northwestern

California California is a state in the Western United States, located along the Pacific Coast. With nearly 39.2million residents across a total area of approximately , it is the most populous U.S. state and the 3rd largest by area. It is also the m ...

in the

United States The United States of America (U.S.A. or USA), commonly known as the United States (U.S. or US) or America, is a country primarily located in North America. It consists of 50 states, a federal district, five major unincorporated territori ...

. The

mountain range A mountain range or hill range is a series of mountains or hills arranged in a line and connected by high ground. A mountain system or mountain belt is a group of mountain ranges with similarity in form, structure, and alignment that have arise ...

is part of the Northern Inner Coast Ranges, of the

California Coast Ranges The Coast Ranges of California span from Del Norte or Humboldt County, California, south to Santa Barbara County. The other three coastal California mountain ranges are the Transverse Ranges, Peninsular Ranges and the Klamath Mountains. P ...

System.

Geography

The Mayacamas Mountains are located south of the Mendocino Range, west of Clear Lake, and east of Ukiah in Mendocino and Lake Counties, and extend south into Napa and Sonoma Counties. The range stretches for in a northwest-southeasterly direction. Mountains in the range include: The range's highest point is Cobb Mountain, at in elevation, located in the central section. There are several other peaks over , including Mount Saint Helena and

Hood Mountain Mount Hood, also known as Hood Mountain is a mountain near the southeastern edge of Santa Rosa, California at the northeast of the Sonoma Valley and attains a height of . The original name was Mount Wilikos, an Indian name meaning "willows." ...

. These peaks are sufficiently high to retain some snow cover in winter. Several streams rise in the Mayacamas Mountains including

Mark West Creek Mark West Creek is a U.S. Geological Survey. National Hydrography Dataset high-resolution flowline dataThe National Map, accessed March 9, 2011 stream that rises in the Mayacamas Mountains of Sonoma County, California, United States. Tributaries ...

Sonoma Creek , name_etymology = , image = Beaver Dam Sonoma Creek, Sonoma Thanksgiving 2009.jpg , image_caption = Beaver dam on Sonoma Creek at Maxwell Farms Regional Park in Sonoma, California, 2009 , image_size = 300 , ma ...

, Calabazas Creek, Arroyo Seco Creek,

Putah Creek Putah Creek (Patwin: ''Liwaito'') is a major stream in Northern California, a tributary of the Yolo Bypass, and ultimately, the Sacramento River. The creek has its headwaters in the Mayacamas Mountains, a part of the Coast Range, and flow ...

, and Santa Rosa Creek. ;Natural history Around ten million years ago, during pre-historic times (

Miocene The Miocene ( ) is the first epoch (geology), geological epoch of the Neogene Period and extends from about (Ma). The Miocene was named by Scottish geologist Charles Lyell; the name comes from the Greek words (', "less") and (', "new") and mea ...

), the mountains are thought to have been densely forested in Mendocino Cypress (''Cupressus pigmaea''). The Mayacamas Mountains currently support California mixed evergreen forest and

California interior chaparral and woodlands The California interior chaparral and woodlands ecoregion covers in an elliptical ring around the California Central Valley. It occurs on hills and mountains ranging from to . It is part of the Mediterranean forests, woodlands, and scrub biome, ...

habitat In ecology, the term habitat summarises the array of resources, physical and biotic factors that are present in an area, such as to support the survival and reproduction of a particular species. A species habitat can be seen as the physical ...

Naming

According to Gudde: The spelling Mayacamas is listed as an alternate name by the Board of Geographic Names.

Geothermal power

Located in the Mayacamas mountain range is

The Geysers The Geysers is the world's largest geothermal field, containing a complex of 18 geothermal power plants, drawing steam from more than 350 wells, located in the Mayacamas Mountains approximately north of San Francisco, California. Geysers produce ...

, the world's largest and most developed geothermal field. It consists of more than 22 power plants scattered across an area of about 30 square miles (78 km2). The Geysers spans the

Lake A lake is an area filled with water, localized in a basin, surrounded by land, and distinct from any river or other outlet that serves to feed or drain the lake. Lakes lie on land and are not part of the ocean, although, like the much large ...

, Sonoma, and Mendocino counties in California, and provides energy to those counties. The electrical energy is generated when dry steam is pumped from geothermal reservoirs through turbines.

References

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External links

{{Authority control California Coast Ranges Mountain ranges of the San Francisco Bay Area Mountain ranges of Mendocino County, California Mountain ranges of Lake County, California Mountain ranges of Napa County, California Mountain ranges of Sonoma County, California Mountain ranges of Northern California

Geography

Naming

Geothermal power

See also

References

External links