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Mahnke Peak
Mahnke Peak is a mountain in Mendocino County, California. Location Mahnke Peak is in Mendocino County, California, in the Mayacamas Mountains of the northern California Coast Ranges. It is just south of the Mendocino County– Lake County boundary. It is east-southeast of the heading of Hoil Creek, northwest of Cobb Mountain and south of Kelseyville. The Köppen climate classification is Csb : Warm-summer Mediterranean climate. The mountain is named for John Christian Christof Mahnke (1858–1939) and his family, who ran several hundred head of angora goats on this peak for 70 years. There is a small building on top of the peak which has an excellent view of the power plants of The Geysers geothermal field. Hydrology The peak borders the Russian River watershed to the west. It is east-southeast of the heading of Hoil Creek. To the northwest Hoil Creek joins Tyler Creek, a tributary of Pieta Creek, which in turn is a tributary of Russian River. Another stream draining t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mount Hannah
Mount Hannah is a mountain in the Mayacamas Mountains of the Northern California Coast Ranges. It is in Lake County, California. Location Mount Hannah is in Lake County, California. It is one of the mountains in the Cobb Mountain Area, many of which have volcanic origin. Others are Cobb Mountain, the most dominant, Seigler Mountain and Boggs Mountain. There are isolated small valleys and basins between the mountain peaks. Mount Hannah has an elevation of . Clean prominence is . Isolation is . The nearest higher neighbor is Cobb Mountain to the south. Geology Mount Hannah formed quite quickly during a polarity transition. It was built up by a number of closely-spaced eruptions. Three of the dacites in the Mount Hannah sequence have been dated to between 0.90 and 0.92 million years ago. There are indications that there may be a crustal magma chamber A magma chamber is a large pool of liquid rock beneath the surface of the Earth. The molten rock, or magma, in such a chambe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mendocino County, California
Mendocino County (; ''Mendocino'', Spanish language, Spanish for "of Antonio de Mendoza, Mendoza") is a County (United States), county located on the North Coast (California), North Coast of the U.S. state of California. As of the 2020 United States census, the population was 91,601. The county seat is Ukiah, California, Ukiah. Mendocino County consists wholly of the Ukiah, California Micropolitan Statistical Area, Micropolitan Statistical Area (μSA) for the purposes of the United States Census Bureau, U.S. Census Bureau. It is located approximately equidistant from the San Francisco Bay Area and California/Oregon border, separated from the Sacramento Valley to the east by the California Coast Ranges. While smaller areas of redwood forest are found farther south, it is the southernmost California county to be included in the World Wide Fund for Nature, World Wildlife Fund's Pacific temperate rainforests, Pacific temperate rainforests ecoregion, the largest temperate rainforest ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mayacamas Mountains
The Mayacamas Mountains are located in northwestern California in the United States. The mountain range is part of the Northern Inner Coast Ranges, of the California Coast Ranges 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. These peaks are sufficiently high to retain some snow cover in winter. Several streams rise in the Mayacamas Mountains including Mark West Creek, Sonoma Creek, Calabazas Creek, Arroyo Seco Creek, Putah Creek, and Santa Rosa Creek. ;Natural history Around ten million years ago, during pre-historic times (Miocene), ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
California Coast Ranges
The Coast Ranges of California span from Del Norte County, California, Del Norte or Humboldt County, California, south to Santa Barbara County, California, Santa Barbara County. The other three coastal California mountain ranges are the Transverse Ranges, Peninsular Ranges and the Klamath Mountains. Physiographically, they are a section of the larger Pacific Border province, which in turn is part of the larger Geography of the United States Pacific Mountain System, Pacific Mountain System physiographic division. UNESCO has included the "California Coast Ranges Biosphere Reserve" in its Man and the Biosphere Programme of World Network of Biosphere Reserves since 1983. * Physiography The northern end of the California Coast Ranges overlap the southern end of the Klamath Mountains for approximately on the west. They extend southward for more than to where the coastline turns eastward along the Santa Barbara Channel, around the area of Point Conception. Here the southern end m ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lake County, California
Lake County is a County (United States), county located in the north central portion of the U.S. state of California. As of the 2020 United States census, 2020 census, the population was 68,163. The county seat is Lakeport, California, Lakeport. The county takes its name from Clear Lake (California), Clear Lake, the dominant geographic feature in the list of counties in California, county and the largest non-extinct natural lake wholly within California. (Lake Tahoe is partially in Nevada; the Salton Sea was formed by flooding; Tulare Lake was drained by the agricultural industry.) Lake County forms the Clearlake, California micropolitan statistical area. It is directly north of the San Francisco Bay Area. Lake County is part of California's Wine Country, which also includes Napa County, California, Napa, Sonoma County, California, Sonoma, and Mendocino County, California, Mendocino counties. It includes nine American Viticultural Areas and around 20 bonded wineries. History ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cobb Mountain
Cobb Mountain is the tallest mountain in the Mayacamas Mountains of California. Location Cobb Mountain's main summit is located in Lake County, west of the town of Cobb. Like nearby Mount Saint Helena, Cobb Mountain is tall enough to receive winter snowfall. The mountain has a sub-peak referred to as Cobb Mountain – Southwest Peak with an elevation of about 4483+ feet, (1367+ m); Southwest Peak lies on the Sonoma-Lake county line and is the highest point in Sonoma County. Nearby taller peaks like Mount Saint Helena and Snow Mountain can be seen from this summit.Height and visual lines-of-sight are based on Google Earth images. Cobb Mountain is one of the mountains in the Cobb Mountain Area, many of which have volcanic origin. Others are Boggs Mountain, Mount Hannah and Seigler Mountain. There are isolated small valleys and basins between the mountain peaks. The east end of Cobb Mountain drains into the headwaters of Putah Creek, then into the Sacramento Ri ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kelseyville, California
Kelseyville is a unincorporated community in Lake County, California, located southeast of Lakeport, at an elevation of . For statistical purposes, the United States Census Bureau has defined that community as a census-designated place (CDP). Its population was 3,382 according to the 2020 United States census. History Name The area has been formerly designated by European American settlers Kelsey or Kelsey Creek, after Andrew Kelsey, one of the first Anglo-American settlers in Lake County, and his brother Benjamin Kelsey. Both men, along with Charles Stone and E.D. Shirland, acquired Salvador Vallejo's livestock in the Clear Lake area in 1847. Andrew Kelsey and Charles Stone were killed in 1849 in an uprising against him by bands of Wappo and Eastern Pomo whom they had enslaved. This episode led to the Bloody Island Massacre in May 1850. The town was also sometimes designated Uncle Sam after Mount Uncle Sam, the name soldiers gave to Mount Konocti when they set up camp ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Köppen Climate Classification
The Köppen climate classification divides Earth climates into five main climate groups, with each group being divided based on patterns of seasonal precipitation and temperature. The five main groups are ''A'' (tropical), ''B'' (arid), ''C'' (temperate), ''D'' (continental), and ''E'' (polar). Each group and subgroup is represented by a letter. All climates are assigned a main group (the first letter). All climates except for those in the ''E'' group are assigned a seasonal precipitation subgroup (the second letter). For example, ''Af'' indicates a tropical rainforest climate. The system assigns a temperature subgroup for all groups other than those in the ''A'' group, indicated by the third letter for climates in ''B'', ''C'', ''D'', and the second letter for climates in ''E''. Other examples include: ''Cfb'' indicating an oceanic climate with warm summers as indicated by the ending ''b.'', while ''Dwb'' indicates a semi-Monsoon continental climate, monsoonal continental climate ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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 produced about 20% of California's renewable energy in 2019. Calpine, the largest generator of electricity from natural gas and geothermal resources in the US, generates power at the site. History For about 12,000 years, Native Americans built steam baths and thermal pools at The Geysers and used the steam and hot water for healing purposes, as well as spiritual and ceremonial practices, and cooking. The thermal pools were used as a medicinal treatment for rheumatism and arthritis. The heated mud was used to soothe skin rashes and other aches and pains, using the fumaroles as a natural energy source. When European Americans first arrived, six local native tribes inhabited the area around The Geysers. These tribes included three bands of Pomo p ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Russian River (California)
The Russian River ( Southern Pomo: ''Ashokawna'', ) is a southward-flowing river that drains of Sonoma and Mendocino counties in Northern California. With an annual average discharge of approximately 1,600,000 acre feet (2.0 km3), it is the second-largest river (after the Sacramento River) flowing through the nine-county Greater San Francisco Bay Area, with a mainstem long. Names The Southern Pomo know the river as Ashokawna (), "east water place" or "water to the east", and as Bidapte, "big river." Juan Rodríguez Cabrillo and his expedition may have travelled as far north as the Russian River in November 1542 before storms forced them to turn back south towards Monterey. The earliest Slavic name for the river, Slavyanka, appears on a Russian-American Company chart dated 1817. In 1827 the Spanish called it the San Ygnacio, and in 1843 the Spanish land grant referred to it as Rio Grande. The river takes its current name from Russian Ivan Kuskov of the Russian-Amer ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Big Sulphur Creek
Big Sulphur Creek is a westward-flowing stream in northern Sonoma County, California, United States, which springs from The Geysers in the Mayacamas Mountains and runs to empty into the Russian River. Course The creek originates on Pine Mountain in the Geysers area, near the Lake County line. It descends to the west, passing north of Sheepskin Rock. North of Mercuryville, it meets Geysers Road, which it parallels the rest of the way to the City of Cloverdale. After Hot Springs Creek and Cobb Creek enter from the right, Big Sulphur Creek passes Geysers Resort and Eagle Rock. Then Truitt Creek enters from the left, Squaw Creek and Frasier Creek enter from the right, and Little Sulphur Creek enters from the left. Big Sulphur Creek emerges into the northern end of Alexander Valley and empties into the Russian River north of Cloverdale. Watershed The creek's drainage basin covers about in the Mayacamas Mountains in northern Sonoma County. Habitat and pollution When surveye ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
