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Petrolia, California
Petrolia is an unincorporated community in Humboldt County, California, southeast of Cape Mendocino. The site of the first oil well drilled in California, it lies at an elevation of above sea level, within ZIP Code 95558, and area code 707. Description Petrolia has an estimated population of 300–500 people within a 15-mile radius. It is located in the Mattole Valley, part of the Lost Coast region, one of the largest wilderness areas and the longest stretch of undeveloped coastline in the continental United States. Petrolia's isolation is due to its position on the rocky, treacherous coastline adjacent to the King Range mountains that isolate this area from mainland California and continue to leave the area almost completely undeveloped. A travel magazine has called this area "too lovely to be believed, perhaps too beautiful to last". It has been recognized as the top "still wild" place in California. The area is the only significant stretch of California without a sho ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Unincorporated Area
An unincorporated area is a parcel of land that is not governed by a local general-purpose municipal corporation. (At p. 178.) They may be governed or serviced by an encompassing unit (such as a county) or another branch of the state (such as the military). There are many unincorporated communities and areas in the United States and Canada, but many countries do not use the concept of an unincorporated area. By country Argentina In Argentina, the provinces of Chubut Province, Chubut, Córdoba Province (Argentina), Córdoba, Entre Ríos Province, Entre Ríos, Formosa Province, Formosa, Neuquén Province, Neuquén, Río Negro Province, Río Negro, San Luis Province, San Luis, Santa Cruz Province, Argentina, Santa Cruz, Santiago del Estero Province, Santiago del Estero, Tierra del Fuego Province, Argentina, Tierra del Fuego, and Tucumán Province, Tucumán have areas that are outside any municipality or commune. Australia Unlike many other countries, Australia has only local go ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bobcat
The bobcat (''Lynx rufus''), also known as the wildcat, bay lynx, or red lynx, is one of the four extant species within the medium-sized wild cat genus '' Lynx''. Native to North America, it ranges from southern Canada through most of the contiguous United States to Oaxaca in Mexico. It is listed as Least Concern on the IUCN Red List since 2002, due to its wide distribution and large population. Although it has been hunted extensively both for sport and fur, populations have proven stable, though declining in some areas. It has distinctive black bars on its forelegs and a black-tipped, stubby (or "bobbed") tail, from which it derives its name. It reaches a total length (including the tail) of up to . It is an adaptable predator inhabiting wooded areas, semidesert, urban edge, forest edge, and swampland environments. It remains in some of its original range, but populations are vulnerable to extirpation by coyotes and domestic animals. Though the bobcat prefers rabbits and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Moment Magnitude Scale
The moment magnitude scale (MMS; denoted explicitly with or Mwg, and generally implied with use of a single M for magnitude) is a measure of an earthquake's magnitude ("size" or strength) based on its seismic moment. was defined in a 1979 paper by Thomas C. Hanks and Hiroo Kanamori. Similar to the local magnitude scale, local magnitude/Richter scale () defined by Charles Francis Richter in 1935, it uses a logarithmic scale; small earthquakes have approximately the same magnitudes on both scales. Despite the difference, news media often use the term "Richter scale" when referring to the moment magnitude scale. Moment magnitude () is considered the authoritative magnitude scale for ranking earthquakes by size. It is more directly related to the energy of an earthquake than other scales, and does not saturatethat is, it does not underestimate magnitudes as other scales do in certain conditions. It has become the standard scale used by seismological authorities like the United State ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fault Line
In geology, a fault is a planar fracture or discontinuity in a volume of rock across which there has been significant displacement as a result of rock-mass movements. Large faults within Earth's crust result from the action of plate tectonic forces, with the largest forming the boundaries between the plates, such as the megathrust faults of subduction zones or transform faults. Energy release associated with rapid movement on active faults is the cause of most earthquakes. Faults may also displace slowly, by aseismic creep. A ''fault plane'' is the plane that represents the fracture surface of a fault. A ''fault trace'' or ''fault line'' is a place where the fault can be seen or mapped on the surface. A fault trace is also the line commonly plotted on geological maps to represent a fault. A ''fault zone'' is a cluster of parallel faults. However, the term is also used for the zone of crushed rock along a single fault. Prolonged motion along closely spaced faults can blur th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Douglas Fir
The Douglas fir (''Pseudotsuga menziesii'') is an evergreen conifer species in the pine family, Pinaceae. It is the tallest tree in the Pinaceae family. It is native to western North America and is also known as Douglas-fir, Douglas spruce, Oregon pine, and Columbian pine. There are three varieties: coast Douglas-fir (''P. menziesii'' var. ''menziesii''), Rocky Mountain Douglas-fir (''P. menziesii'' var. ''glauca'') and Mexican Douglas-fir (''P. menziesii'' var. ''lindleyana''). Despite its common names, it is not a true fir (genus '' Abies''), spruce (genus '' Picea''), or pine (genus ''Pinus''). It is also not a hemlock; the genus name ''Pseudotsuga'' means "false hemlock". Description Douglas-firs are medium-sized to extremely large evergreen trees, tall (although only coast Douglas-firs reach heights near 100 m) and commonly reach in diameter, although trees with diameters of almost exist. The largest coast Douglas-firs regularly live over 500 years, with the ol ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Salmon
Salmon (; : salmon) are any of several list of commercially important fish species, commercially important species of euryhaline ray-finned fish from the genera ''Salmo'' and ''Oncorhynchus'' of the family (biology), family Salmonidae, native to tributary, tributaries of the North Atlantic (''Salmo'') and North Pacific (''Oncorhynchus'') basins. ''Salmon'' is a colloquial or common name used for fish in this group, but is not a scientific name. Other closely related fish in the same family include trout, Salvelinus, char, Thymallus, grayling, Freshwater whitefish, whitefish, lenok and Hucho, taimen, all coldwater fish of the subarctic and cooler temperate regions with some sporadic endorheic populations in Central Asia. Salmon are typically fish migration, anadromous: they hatch in the shallow gravel stream bed, beds of freshwater headstreams and spend their juvenile fish, juvenile years in rivers, lakes and freshwater wetlands, migrate to the ocean as adults and live like sea ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Punta Gorda Light
Punta Gorda Lighthouse is a lighthouse in the United States, south of Cape Mendocino, California, within Humboldt County. Access is via a short hike from the end of a 4WD road. It is managed by the Bureau of Land Management. History Punta Gorda Lighthouse was built in 1911 and was first lit in 1912. After World War II, it was decided that given the remoteness of the station it was too costly to maintain. A lighted buoy was placed offshore, the fourth order Fresnel lens was removed, and the station was boarded up and deactivated in 1951. The keeper's house and all other station buildings were eventually demolished except the reinforced concrete light station building and the metal framework for the lantern room atop it and the reinforced concrete oil house were left standing. Historical Information from USCG web site: Punta Gorda originally consisted of upon which were situated three dwellings, a small two-story concrete lighthouse, concrete oil house, a wooden fog signal ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
King Range National Conservation Area
The King Range is a mountain range of the Outer Northern California Coast Ranges system, located entirely within Humboldt County on the North Coast of California. Much of the mountain range's area is protected within the King Range National Conservation Area, a National Conservation Area unit of the National Landscape Conservation System, and in the King Range Wilderness Area, both managed by the Bureau of Land Management (BLM). Geography As part of the Northern Coast Ranges, the King Range runs parallel to the coast, and its western slopes fall steeply to the Pacific Ocean. The King Range is adjacent to the Mendocino triple junction, where three tectonic plates – the Pacific plate, the North American plate, and the Juan de Fuca plate – meet. The area experiences frequent earthquakes. Most mountains and ridges in the range are low to moderate in elevation. King Peak, at , is the highest mountain in the range. Snow falls above 3,281 feet (1,000 m) a couple of tim ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bald Eagle
The bald eagle (''Haliaeetus leucocephalus'') is a bird of prey found in North America. A sea eagle, it has two known subspecies and forms a species pair with the white-tailed eagle (''Haliaeetus albicilla''), which occupies the same niche as the bald eagle in the Palearctic. Its range includes most of Canada and Alaska, all of the contiguous United States, and northern Mexico. It is found near large bodies of open water with an abundant food supply and old-growth trees for nesting. The bald eagle is an opportunistic feeder that subsists mainly on fish, upon which it swoops down and snatches from the water with its talons. It builds the largest nest of any North American bird and the largest tree nests ever recorded for any animal species, up to deep, wide, and in weight. Sexual maturity is attained at the age of four to five years. Bald eagles are not bald; the name derives from an older meaning of the word, "white-headed". The adult is mainly brown with a white head ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Northern Alligator Lizard
The northern alligator lizard (''Elgaria coerulea'') is a species of medium-sized lizard in the family Anguidae. The species is endemic to the North American west coast. Taxonomy The northern alligator lizard was formerly known by the scientific name of ''Gerrhonotus coeruleus'' , but more recently has been assigned to the genus ''Elgaria''. Subspecies Four subspecies are recognized as being valid, including the nominotypical subspecies.. www.reptile-database.org. *''E. c. coerulea'' – San Francisco alligator lizard *''E. c. palmeri'' – Sierra alligator lizard *''E. c. principis'' – Northwestern alligator lizard *''E. c. shastensis'' – Shasta alligator lizard A trinomial authority in parentheses indicates that the subspecies was originally described in a genus other than ''Elgaria''. The subspecies ''E. c. principis'' is one of seven species of lizards in Canada. Etymology The subspecific name, ''palmeri'', is in honor of American zoologist Theodore Sherman ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
