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Kelsey Slough
Kelsey Creek is a watercourse in Lake County, California, United States, that feeds Clear Lake from the south. The watershed was forest-covered. In the lower parts it has been converted to farmland and for urban use. Higher up the forests have been cleared, regrown and cleared again. The northern part of the creek flows through a geothermal field that feeds power plants and hot springs. The wooded Cobb area in the higher part of the watershed holds resorts and resort communities, some dating to the 1850s. Name The creek takes its name from Andrew Kelsey, the first European-American settler in Lake County. Andrew Kelsey was killed in 1850 in an uprising against him by a band of Pomo whom Kelsey had enslaved. This episode ended with the Bloody Island massacre on an island in Clear Lake. Course Kelsey Creek is about long. It forms on Cobb Mountain at above sea level and drops to at Clear Lake. It flows in a northwest direction through the mountains to Big Valley, then flo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sacramento Pikeminnow
The Sacramento pikeminnow (''Ptychocheilus grandis''), formerly known as the Sacramento squawfish, is a large cyprinid fish of California, United States. It is native to the Los Angeles River, Sacramento- San Joaquin, Pajaro- Salinas, Russian River, Clear Lake and upper Pit River river basins. It is predatory and reaches up to in total length Fish measurement is the measuring of individual fish and various parts of their anatomies. These data are used in many areas of ichthyology, including taxonomy and fisheries biology. Overall length * Standard length (SL) is the length of a fish .... The species has been introduced into the Salt River, where it is considered an invasive species. The species was introduced to the Eel River watershed in the 1970s by anglers using the pikeminnow as bait. It has a large appetite for salmonid species once it reaches about long. Until then, it eats anything in its path. Because it is invasive in the Eel River, it has very few predat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Valley Oak
''Quercus lobata'', commonly called the valley oak or roble, grows into the largest of California oaks. It is endemic to California, growing in interior valleys and foothills from Siskiyou County to San Diego County. Mature specimens may attain an age of up to 600 years. This deciduous oak requires year-round access to groundwater. Its thick, ridged bark is characteristic and resembles alligator hide. The valley oak's deeply lobed leaves assist in identification. Description The valley oak may surpass in height, with a sturdy trunk possibly exceeding in diameter. The "Henley Oak", in Covelo, California, is the tallest known valley oak, at . The branches have an irregular, spreading and arching appearance that produce a profound leafless silhouette in the clear winter sky. During autumn, the leaves turn a yellow to light orange color but become brown later in the season. In advancing age, the branches assume a drooping characteristic. The tree's pewter-colored rippled bark a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Boggs Mountain Demonstration State Forest
Boggs Mountain Demonstration State Forest is a state forest in Lake County, California that covers the northwest of Boggs Mountain. It was founded in 1949, and came into operation in 1950 when most of the site had been clear cut. The purpose was to demonstrate good practices in restoring and managing a forest. The state forest was open for recreational use, including camping, hiking, mountain biking etc. The 2015 Valley Fire destroyed 80% of the trees. The state forest as of 2021 was replanting saplings. Location The forest is roughly half way between Clear Lake (California), Clear Lake and Calistoga, California, Calistoga. It is near the town of Cobb, California, Cobb, about north of Middletown, California, Middletown on California State Route 175, Highway 175. It is about from the Pacific Ocean to the west, and about as the crow flies from San Francisco to the south. Boggs Mountain is a prominent feature at the southeast end of the Clear Lake Volcanic Field. It is an elonga ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
World War II
World War II or the Second World War, often abbreviated as WWII or WW2, was a world war that lasted from 1939 to 1945. It involved the vast majority of the world's countries—including all of the great powers—forming two opposing military alliances: the Allies and the Axis powers. World War II was a total war that directly involved more than 100 million personnel from more than 30 countries. The major participants in the war threw their entire economic, industrial, and scientific capabilities behind the war effort, blurring the distinction between civilian and military resources. Aircraft played a major role in the conflict, enabling the strategic bombing of population centres and deploying the only two nuclear weapons ever used in war. World War II was by far the deadliest conflict in human history; it resulted in 70 to 85 million fatalities, mostly among civilians. Tens of millions died due to genocides (including the Holocaust), starvation, ma ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Boggs Mountain
Boggs Mountain is a mountain the Mayacamas Mountains in Lake County, California. Part of the mountain holds the Boggs Mountain Demonstration State Forest. About 80% of the trees were burned in the September 2015 Valley Fire. Name In the early days of settlement of Lake County, the mountain was called Harbin Mountain after a settler named James M. Harbin who around 1856 took control of the land occupied by the Harbin Hot Springs, and gave his name to the springs and the mountain. An 1890 description by the State Mineralogist used this name to refer to the mountain. Later the mountain took the name Boggs Mountain. This name honors Henry C. Boggs (1820–1898), an early settler and entrepreneur in Lake County. The name Harbin Mountain survives, referring to a high point above Harbin Hot Springs on a ridge that comes down to the south from Boggs Mountain. Location Boogs Mountain is located in Lake County, California. It is high, in the heart of the Mayacamas Mountains, facing ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sulphur Bank Mine
The Sulphur Bank Mine is located near Clearlake Oaks and Clear Lake in Lake County, California. The mine became one of the most noted mercury producers in the world. During the 150 years since the Sulphur Bank was discovered, the area has drawn geologists, inspired unique scientific theories, established constitutional case law and now attracts environmental scientists who study the impact of mercury contamination within the Cache Creek watershed of northern California and the Sacramento River-Delta Region and San Francisco Bay. History Beginning in 1856, the mine was first worked for borax. Mining for sulfur began in 1865, and produced 2,000,000 pounds (909,090 kg) in four years. Mercury ore was mined intermittently by underground and open-pit methods from 1873 to 1957. Sulphur Bank Mine was credited with a total output of 92,400 flasks (7.02 million pounds) by 1918. The mine was an important producer during both world wars. The mine closed in 1957 and is a Califor ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Clearlake, California
Clearlake is a city in Lake County, California. Clearlake is north-northwest of Lower Lake, at an elevation of . As of the 2020 census, the city had a total population of 16,685, up from 15,250 in 2010. It takes its name from Clear Lake. History The Clearlake post office opened in 1923, "Konocti" then Clearlake Highlands until incorporation in 1981 when the official name became City of Clearlake. The first inhabitants of Clearlake were the Pomo Indians, who named many of the area's features, including Mount Konocti. Beginning in 1821, enslavement and mistreatment by Spanish soldiers and missionaries, Mexican land barons, European settlers, and gold diggers, combined with a lack of natural immunity to European diseases, resulted in a massive wave of deaths. The result of this was massive amounts of land freed up for the white settlers who arrived during the gold rush. Geography Clearlake is located at 38°57'30" North, 122°37'35" West. According to the United States ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Borax Lake Site
The Borax Lake Site, also known as the Borax Lake—Hodges Archaeological Site and designated by the Smithsonian trinomial CA-LAK-36, is a prehistoric archaeological site near Clearlake, California. The site, a deeply stratified former lakeshore, contains evidence of the earliest known period of human habitation in what is now California, dating back 12,000 years. A portion of the site, designated a National Historic Landmark in 2006, is owned and preserved by the Archaeological Conservancy. Description The Borax Lake site is located near the community of Clearlake, in the North Coast Ranges of northern California near Mount Konocti. The site is deflated surface site and quarry, with cultural deposits reaching a depth of more than . The stratigraphy of the site suggests repeated occupation of the area across a long time period, from about 12,000 to present day. Important finds include Clovis-style projectile points fashioned out of obsidian, which was probably obtained fr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
John Cobb (pioneer)
John Cobb (19 May 1814 – 13 November 1893) was an American pioneer. He was born in Kentucky, then moved frequently from farm to farm in Midwestern United States before taking his family across the Great Plains and the Rocky Mountains to California in 1850–1851. Here he continued to move frequently before finally settling in what is known as Cobb Valley in Lake County, California, the first European to settle in the region. His name survives in Cobb Mountain and the village of Cobb, California, both in Lake County, California. Early years (1814––1832) John Cobb was born on 19 May 1814 in Henry County, Kentucky, across the Ohio River from Madison in Jefferson County, Indiana. His father was a farmer. While he was a child the family lived in Indiana for six years before returning to Kentucky. When Cobb was 16 the family moved to Jefferson County, Indiana. Cobb left home when he was 18 and moved to Vigo County, Indiana in 1832, where he started a keelboat freighter service ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hydrogen Sulfide
Hydrogen sulfide is a chemical compound with the formula . It is a colorless chalcogen-hydride gas, and is poisonous, corrosive, and flammable, with trace amounts in ambient atmosphere having a characteristic foul odor of rotten eggs. The underground mine gas term for foul-smelling hydrogen sulfide-rich gas mixtures is ''stinkdamp''. Swedish chemist Carl Wilhelm Scheele is credited with having discovered the chemical composition of purified hydrogen sulfide in 1777. The British English spelling of this compound is hydrogen sulphide, a spelling no longer recommended by the Royal Society of Chemistry or the International Union of Pure and Applied Chemistry. Hydrogen sulfide is toxic to humans and most other animals by inhibiting cellular respiration in a manner similar to hydrogen cyanide. When it is inhaled or it or its salts are ingested in high amounts, damage to organs occurs rapidly with symptoms ranging from breathing difficulties to convulsions and death. Despite this, the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
California Live Oak
''Quercus agrifolia'', the California live oak, or coast live oak, is a highly variable, often evergreen oak tree, a type of live oak, native to the California Floristic Province. It may be shrubby, depending on age and growing location, but is generally a medium-sized tree. It grows west of the Sierra Nevada mountain range from Mendocino County, California, south to northern Baja California in Mexico. It is classified in the red oak section of oaks (''Quercus'' sect. ''Lobatae''). This species is commonly sympatric with canyon live oak (''Q. chrysolepis''), and the two may be hard to distinguish because their spinose leaves are superficially similar. Description Coast live oak typically has a much-branched trunk and reaches a mature height of . Some specimens may attain an age exceeding 1,000 years. Examples of this include the Grand Oak of Cherry Valley, California, the Encino Oak Tree, which died in the 1990s (part of the stump has been preserved) and the Pechanga Grea ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chaparral
Chaparral ( ) is a shrubland plant community and geographical feature found primarily in the U.S. state of California, in southern Oregon, and in the northern portion of the Baja California Peninsula in Mexico. It is shaped by a Mediterranean climate (mild wet winters and hot dry summers) and infrequent, high-intensity crown fires. Chaparral features summer-drought-tolerant plants with hard sclerophyllous evergreen leaves, as contrasted with the associated soft-leaved, drought-deciduous, scrub community of coastal sage scrub, found often on drier, southern facing slopes within the chaparral biome. Three other closely related chaparral shrubland systems occur in central Arizona, western Texas, and along the eastern side of central Mexico's mountain chains (mexical), all having summer rains in contrast to the Mediterranean climate of other chaparral formations. Chaparral comprises 9% of California's wildland vegetation and contains 20% of its plant species. The name comes from th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
