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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 f ... [...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] |
Greywacke
Greywacke or graywacke ( ) is a variety of sandstone generally characterized by its hardness (6–7 on Mohs scale), dark color, and Sorting (sediment), poorly sorted angular grains of quartz, feldspar, and small rock fragments or sand-size Lithic fragment (geology), lithic fragments set in a compact, clay-fine matrix. It is a texturally immature sedimentary rock generally found in Paleozoic Stratum, strata. The larger Particle size (grain size), grains can be sand- to gravel-sized, and Matrix (geology), matrix materials generally constitute more than 15% of the rock by volume. Formation 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 mixed-sediment slurries, in which the resulting deposits may ex ... [...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 California. 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-acre Rush Fire, which burned across California and Nevada, as well as the Santiago Canyon Fire of 1889, which was previously be ... [...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 s ... [...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 that lies on the West Coast of the United States, Pacific Coast. It borders Oregon to the north, Nevada and Arizona to the east, and shares Mexico–United States border, an .... 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. Water from Witter Medical Springs was bottled and sold to the public circa 1909. The ZIP code for Witter Springs is 95493. References Reference bibliography * * * ... [...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, United States. It is wide and runs approximately from north-northwest to south-southeast, inland from and parallel to the Pacific coast. It covers approximately , about 11% of California's land area. The valley is bounded by the California Coast Ranges, Coast Ranges to the west and the Sierra Nevada to the east. The Central Valley is a region known for its agricultural productivity. It provides a large share of the food produced in California, which 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, as well as Redding, California, Redding, Chico, California, Chico, Yuba City, California, Yuba City, Woodland, California, Woodland, Davis, California, Davis, Stockton, California, Stockton, M ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
San Francisco Bay Area
The San Francisco Bay Area, commonly known as the Bay Area, is a List of regions of California, region of California surrounding and including San Francisco Bay, and anchored by the cities of Oakland, San Francisco, and San Jose, California, San Jose. The Association of Bay Area Governments defines the Bay Area as including the nine counties that border the estuary, estuaries of San Francisco Bay, San Pablo Bay, and Suisun Bay: Alameda County, California, Alameda, Contra Costa County, California, Contra Costa, Marin County, California, Marin, Napa County, California, Napa, San Mateo County, California, San Mateo, Santa Clara County, California, Santa Clara, Solano County, California, Solano, Sonoma County, California, Sonoma, and San Francisco County, California, San Francisco. Other definitions may be either smaller or larger, and may include neighboring counties which are not officially part of the San Francisco Bay Area, such as the Central Coast (California), Central Coast c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Salvador Vallejo
Don Mariano Guadalupe Vallejo (July 4, 1807 – January 18, 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 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 previous ni ... [...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 U.S. 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 B ... [...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 was 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 a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Serpentinite
Serpentinite is a metamorphic rock composed predominantly of serpentine group minerals formed by serpentinization of mafic or ultramafic rocks. The ancient origin of the name is uncertain; it may be from the similarity of its texture or color to snake skin. Greek pharmacologist Pedanius Dioscorides, Dioscorides (AD 50) recommended this rock to prevent snakebite. Serpentinite has been called ''serpentine'' or ''serpentine rock'', particularly in older geological texts and in wider cultural settings.California Government Code § 425.2; ''see'' Most of the chemical reactions necessary to synthesize acetyl-CoA, essential to basic biochemical pathways of life, take place during serpentinization. Serpentinite thermal vents are therefore considered a candidate for the origin of life on Earth. Formation and mineralogy Serpentinite is formed by near to complete serpentinization of mafic or ultramafic rocks. Serpentinite is formed from mafic rock that is mineral hydration, hydrate ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
