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Scotts Creek (California)
Scotts Creek is a stream in Lake County, California, the largest tributary of Clear Lake. It rises to the south of Cow Mountain in the Mayacamas Mountains, then flows southeast towards Clear Lake, running through the fertile Scotts Valley and the seasonal Tule Lake before joining Middle Creek and flowing into the lake via Rodman Slough. Hydrology Scotts Creek is long. It is the largest tributary of Clear Lake, contributing about 24% of the streamflow to the lake with a watershed that covers 23% of the Clear Lake basin. Clear Lake drains to the east via Cache Creek to the Sacramento River. The course of Scotts Creek resembles a letter "S" with its vertical axis tilted 45° clockwise. The creek forms to the south of Cow Mountain, and then runs southeast to its junction with the creek's South Fork. It turns east and then northeast past Lakeport, then flows northwest through the fertile Scotts Valley up to the outlet from the Blue Lakes. From this point it turns east and flo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lake County, California
Lake County is a county located in the north central portion of the U.S. state of California. As of the 2020 census, the population was 68,163. The county seat is Lakeport. The county takes its name from Clear Lake, the dominant geographic feature in the 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, Sonoma, and Mendocino counties. It includes five American Viticultural Areas and over 35 wineries. History Lake County has been inhabited by Pomo Native Americans for over ten thousand years. Pomos had been fishermen and hunters, known especially for their intricate basketry made from lakeshore tules and other native plan ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Greywacke
Greywacke or graywacke (German ''grauwacke'', signifying a grey, earthy rock) is a variety of sandstone generally characterized by its hardness, dark color, and poorly sorted angular grains of quartz, feldspar, and small rock fragments or lithic fragments set in a compact, clay-fine matrix. It is a texturally immature sedimentary rock generally found in Paleozoic strata. The larger grains can be sand- to gravel-sized, and matrix materials generally constitute more than 15% of the rock by volume. The term "greywacke" can be confusing, since it can refer to either the immature (rock fragment) aspect of the rock or its fine-grained (clay) component. The origin of greywacke was unknown until turbidity currents and turbidites were understood, since, according to the normal laws of sedimentation, gravel, sand and mud should not be laid down together. Geologists now attribute its formation to submarine avalanches or strong turbidity currents. These actions churn sediment and cause mi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mendocino Complex Fire
The Mendocino Complex Fire was a large complex of wildfires that burned in northern California for more than three months in 2018. It consisted of two wildfires, the River Fire and Ranch Fire, which burned in Mendocino, Lake, Colusa, and Glenn Counties in the U.S. State of California, with the Ranch Fire being California's single-largest recorded wildfire at the time until the Dixie Fire in 2021. The Ranch Fire burned eight miles northeast of Ukiah, and the River Fire burned six miles north of Hopland, to the south of the larger Ranch Fire. First reported on July 27, 2018, both fires burned a combined total of , before they were collectively 100% contained on September 18, though hotspots persisted until the complex was fully brought under control on January 4, 2019. The Ranch Fire alone burned , making it the largest wildfire in modern California history at the time until the August Complex fire that occurred in 2020. The Ranch Fire also surpassed the size of the 315,577 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Saratoga Springs, California
Saratoga Springs (formerly, Bachelor Springs and Pierson Springs) is a set of springs that was turned into a resort in the 1870s in Lake County, California. At its peak the resort could accommodate 250 people. The resort was closed after the main hotel burned down, but reopened as a retreat in 1991. Location Saratoga Springs is located west of Upper Lake. It is at an elevation of 1427 feet (435 m). The town of Saratoga Springs was originally located north of its present location. The springs are on the side of a wide, brushy drainage ravine. They are about as the crow flies from the Witter Medical Springs. They are east of Ukiah and west of Upper Lake. The springs are in the Scotts Creek watershed. Springs The resort had 12 small mineral springs, of which 11 were on the slopes east of the hotel. Six of these rose in cemented basins in the Roundhouse, a circular building in diameter. Their combined flow is perhaps per minute. They are all carbonated and deposit sm ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Witter Springs, California
Witter Springs (formerly Witter's Springs, Witter Medical Springs, and Witter) is a set of springs that was turned into a resort in the 1870s in Lake County, California California is a U.S. state, state in the Western United States, located along the West Coast of the United States, Pacific Coast. With nearly 39.2million residents across a total area of approximately , it is the List of states and territori .... Location Witter Springs is located northwest of Upper Lake, at an elevation of . It is on the west side of Bachelor Valley in the Scotts Creek watershed. History The Witter Springs resort opened soon after the springs were discovered in 1870. The Witter's Springs post office operated from 1873 to 1880. The Witter post office opened in 1901, moved and changed its name to Witter Springs in 1913. The ZIP code for Witter Springs is 95493. References Reference bibliography * * * * {{authority control Springs of Lake County, California Resorts in Lake ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Central Valley (California)
The Central Valley is a broad, elongated, flat valley that dominates the interior of California. It is wide and runs approximately from north-northwest to south-southeast, inland from and parallel to the Pacific coast of the state. It covers approximately , about 11% of California's land area. The valley is bounded by the Coast Ranges The Pacific Coast Ranges (officially gazetted as the Pacific Mountain System in the United States) are the series of mountain ranges that stretch along the West Coast of North America from Alaska south to Northern and Central Mexico. Although th ... to the west and the Sierra Nevada to the east. The Central Valley is a list of regions of California, region known for its agricultural productivity: it provides more than half of the fruits, vegetables, and nuts grown in the United States. More than of the valley are irrigated via reservoirs and canals. The valley hosts many cities, including the state capital Sacramento, California, Sacramento ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
San Francisco Bay Area
The San Francisco Bay Area, often referred to as simply the Bay Area, is a populous region surrounding the San Francisco, San Pablo, and Suisun Bay estuaries in Northern California. The Bay Area is defined by the Association of Bay Area Governments to include the nine counties that border the aforementioned estuaries: Alameda, Contra Costa, Marin, Napa, San Mateo, Santa Clara, Solano, Sonoma, and San Francisco. Other definitions may be either smaller or larger, and may include neighboring counties that do not border the bay such as Santa Cruz and San Benito (more often included in the Central Coast regions); or San Joaquin, Merced, and Stanislaus (more often included in the Central Valley). The core cities of the Bay Area are San Francisco, San Jose, and Oakland. Home to approximately 7.76 million people, Northern California's nine-county Bay Area contains many cities, towns, airports, and associated regional, state, and national parks, connected by a comp ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Salvador Vallejo
Don Mariano Guadalupe Vallejo (4 July 1807 – 18 January 1890) was a Californio general, statesman, and public figure. He was born a subject of Spain, performed his military duties as an officer of the Republic of Mexico, and shaped the transition of Alta California from a territory of Mexico to the U.S. state of California. He served in the first session of the California State Senate. The city of Vallejo, California is named after him, and the nearby city of Benicia is named after his wife (née Francisca Benicia Carrillo). Early career Mariano Vallejo was born in Monterey, California, the eighth of thirteen children and third son of Ignacio Vicente Ferrer Vallejo (1748–1832) and María Antonia Lugo (1776–1855). There is controversy over Vallejo's exact date of birth. According to Vallejo, and his family bible, he was born on 7 July 1807. His baptismal certificate, however, signed by Fr. Baltasar Carnicer states that he was baptized on 5 July 1807, and born the previo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
California State Route 20
State Route 20 (SR 20) is a state highway in the northern-central region of the state of California, running east–west north of Sacramento from the North Coast to the Sierra Nevada. Its west end is at SR 1 in Fort Bragg, from where it heads east past Clear Lake, Colusa, Yuba City, Marysville and Nevada City to I-80 near Emigrant Gap, where eastbound traffic can continue on other routes to Lake Tahoe or Nevada. Portions of SR 20 are built near the routing of what was first a wagon road and later a turnpike in the late 19th century. This road was extended through the state highway system all the way to Ukiah in the early 20th century, and the missing link near Clear Lake was completed in 1932 before the official designation of this highway as SR 20 in 1934. There have been subsequent improvements to the road, such as the conversion of the Grass Valley portion of the route to freeway standards. Route description State Route 20 begins at SR 1 in southern Fort Bragg, less t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cold Creek (Russian River Tributary)
Cold Creek is a river of Mendocino County, California, a tributary of East Fork Russian River. In the past it may have connected Clear Lake to the Russian River before this route was blocked by a large landslide and Clear Lake began to drain into the Sacramento River watershed. Location Cold Creek is long. It is a left tributary of East Fork Russian River. The Ukiah Valley extends up the Russian River to the junction of the east fork with the main stream. Above this along the east fork to the confluence of Cold Creek it is known as Coyote Valley (''cō'dakai''). Above Cold Creek to the head of the east fork it is called Potter Valley (''djūhū'la-kai''). A 1914 survey of the Ukiah Area said the Cold Creek Valley was small and not very important agriculturally. It was interesting because it belonged to a middle-aged stream that was now tributary to a very youthful stream. The East Fork of the Russian River has a youthful topography, flowing with a high gradient through a V-sha ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Clear Lake Volcanic Field
The Clear Lake Volcanic Field is a volcanic field beside Clear Lake in California's northern Coast Ranges. The site of late-Pliocene to early Holocene activity, the volcanic field consists of lava domes, cinder cones, and maars with eruptive products varying from basalt to rhyolite. The site's threat level is ranked "High" at #33 in the top volcanic threats in the United States according to "2018 Update to the U.S. Geological Survey National Volcanic Threat Assessment". The last eruption being about 11,000 years ago. Cobb Mountain and Mount Konocti are the two highest peaks in the volcanic field, at . Retrieved 2008-08-19. and respectively. The field's magma chamber also powers a geothermal field called The Geysers, which hosts the largest complex of geothermal power plants in the world. These can generate approximately 2000 megawatts, enough to power two cities the size of San Francisco. The Clear Lake volcanics are thought to have been the heat source for the hot springs ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Serpentinite
Serpentinite is a rock composed predominantly of one or more serpentine group minerals, the name originating from the similarity of the texture of the rock to that of the skin of a snake. Serpentinite has been called ''serpentine'' or ''serpentine rock'', particularly in older geological texts and in wider cultural settings.California Government Code § 425.2; ''see'' Formation and mineralogy Serpentinite is formed by near to complete serpentinization of mafic to ultramafic rocks. Serpentinite can be formed wherever ultramafic rock is infiltrated by water poor in carbon dioxide. This occurs at mid-ocean ridges and in the forearc mantle of subduction zones. The final mineral composition of serpentinite is usually dominated by lizardite, chrysotile, and magnetite. Brucite and antigorite are less commonly present. Lizardite, chrysotile, and antigorite all have approximately the formula or , but differ in minor components and in form. Accessory minerals, present in smal ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
