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Bighorn Mountains (California)
The Bighorn Mountains are a mountain range of the Mojave Desert and Transverse Ranges, located in San Bernardino County, California. They are primarily within a Bureau of Land Management (BLM) protected area. Geography They are an eastern subrange of the San Bernardino Mountains. The Bighorn Mountains are located north of the Morongo Valley, northwest of Yucca Valley, directly south of the Johnson Valley, and southeast of the Lucerne Valley. They support an ecotone or ecological transition zone, that including Yuccas and Joshua trees on the desert floor and stands of Jeffrey Pine at higher elevations. Bighorn Mountain Wilderness Area The Bighorn Mountain Wilderness Area protects the north−central (BLM) and western areas of the range (San Bernardino National Forest). A section of the eastern Bighorn Mountains is protected within Sand to Snow National Monument Sand to Snow National Monument is a U.S. National Monument located in San Bernardino County and northern Riverside ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mojave Desert
The Mojave Desert ( ; mov, Hayikwiir Mat'aar; es, Desierto de Mojave) is a desert in the rain shadow of the Sierra Nevada mountains in the Southwestern United States. It is named for the indigenous Mojave people. It is located primarily in southeastern California and southwestern Nevada, with small portions extending into Arizona and Utah. The Mojave Desert, together with the Sonoran, Chihuahuan, and Great Basin deserts, forms a larger North American Desert. Of these, the Mojave is the smallest and driest. The Mojave Desert displays typical basin and range topography, generally having a pattern of a series of parallel mountain ranges and valleys. It is also the site of Death Valley, which is the lowest elevation in North America. The Mojave Desert is often colloquially called the "high desert", as most of it lies between . It supports a diversity of flora and fauna. The desert supports a number of human activities, including recreation, ranching, and military training. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ecotone
An ecotone is a transition area between two biological communities, where two communities meet and integrate. It may be narrow or wide, and it may be local (the zone between a field and forest) or regional (the transition between forest and grassland ecosystems). An ecotone may appear on the ground as a gradual blending of the two communities across a broad area, or it may manifest itself as a sharp boundary line. Etymology The word ''ecotone'' was coined by Alfred Russel Wallace, who first observed the abrupt boundary between two biomes in 1859. It is formed as a combination of ''ecology'' plus ''-tone'', from the Greek ''tonos'' or tension – in other words, a place where ecologies are in tension. Features There are several distinguishing features of an ecotone. First, an ecotone can have a sharp vegetation transition, with a distinct line between two communities. For example, a change in colors of grasses or plant life can indicate an ecotone. Second, a change in physiogn ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bureau Of Land Management Areas In California
Bureau ( ) may refer to: Agencies and organizations *Government agency *Public administration * News bureau, an office for gathering or distributing news, generally for a given geographical location * Bureau (European Parliament), the administrative organ of the Parliament of the European Union * Federal Bureau of Investigation, the leading internal law enforcement agency in the United States * Service bureau, a company which provides business services for a fee * Citizens Advice Bureau, a network of independent UK charities that give free, confidential help to people for money, legal, consumer and other problems Furniture * Desk, a piece of furniture, typically a table used for office work * Chest of drawers, a piece of furniture that has multiple, stacked, parallel drawers Geography * Bureau County, Illinois * Bureau Lake, a body of water in the Gouin Reservoir, in Quebec, Canada People * Bernard Béréau (1940–2005), French footballer * Bernard Bureau (born 1959), Fren ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wilderness Areas Of California
Wilderness or wildlands (usually in the plural), are natural environments on Earth that have not been significantly modified by human activity or any nonurbanized land not under extensive agricultural cultivation. The term has traditionally referred to terrestrial environments, though growing attention is being placed on marine wilderness. Recent maps of wilderness suggest it covers roughly one quarter of Earth's terrestrial surface, but is being rapidly degraded by human activity. Even less wilderness remains in the ocean, with only 13.2% free from intense human activity. Some governments establish protection for wilderness areas by law to not only preserve what already exists, but also to promote and advance a natural expression and development. These can be set up in preserves, conservation preserves, national forests, national parks and even in urban areas along rivers, gulches or otherwise undeveloped areas. Often these areas are considered important for the survival of c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mountain Ranges Of The Mojave Desert
A mountain is an elevated portion of the Earth's crust, generally with steep sides that show significant exposed bedrock. Although definitions vary, a mountain may differ from a plateau in having a limited summit area, and is usually higher than a hill, typically rising at least 300 metres (1,000 feet) above the surrounding land. A few mountains are isolated summits, but most occur in mountain ranges. Mountains are formed through tectonic forces, erosion, or volcanism, which act on time scales of up to tens of millions of years. Once mountain building ceases, mountains are slowly leveled through the action of weathering, through slumping and other forms of mass wasting, as well as through erosion by rivers and glaciers. High elevations on mountains produce colder climates than at sea level at similar latitude. These colder climates strongly affect the ecosystems of mountains: different elevations have different plants and animals. Because of the less hospitable terrain a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mountain Ranges Of San Bernardino County, California
A mountain is an elevated portion of the Earth's crust, generally with steep sides that show significant exposed bedrock. Although definitions vary, a mountain may differ from a plateau in having a limited summit area, and is usually higher than a hill, typically rising at least 300 metres (1,000 feet) above the surrounding land. A few mountains are isolated summits, but most occur in mountain ranges. Mountains are formed through tectonic forces, erosion, or volcanism, which act on time scales of up to tens of millions of years. Once mountain building ceases, mountains are slowly leveled through the action of weathering, through slumping and other forms of mass wasting, as well as through erosion by rivers and glaciers. High elevations on mountains produce colder climates than at sea level at similar latitude. These colder climates strongly affect the ecosystems of mountains: different elevations have different plants and animals. Because of the less hospitable terrain and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sand To Snow National Monument
Sand to Snow National Monument is a U.S. National Monument located in San Bernardino County and northern Riverside County, Southern California. It protects diverse montane and desert habitats of the San Bernardino Mountains, southern Mojave Desert, and northwestern Colorado Desert. Geography The national monument protects a total of , with the Bureau of Land Management (BLM) managing acres, and the USFS−San Bernardino National Forest managing .Whitehouse.gov: Presidential Proclamation − Establishment of the Sand to Snow National Monument 12 February 2016 – "The USFS shall manage that portion of the monument within the boundaries of the |
San Bernardino National Forest
The San Bernardino National Forest is a United States National Forest in Southern California encompassing of which are federal. The forest is made up of two main divisions, the eastern portion of the San Gabriel Mountains and the San Bernardino Mountains on the easternmost of the Transverse Ranges, and the San Jacinto Mountains, San Jacinto and Santa Rosa Mountains (California), Santa Rosa Mountains on the northernmost of the Peninsular Ranges. Elevations range from 2,000 to 11,499 feet (600 to 3505 m). The forest includes seven wilderness areas: San Gorgonio Wilderness, San Gorgonio, Cucamonga Wilderness, Cucamonga, San Jacinto Wilderness, San Jacinto, South Fork, Santa Rosa Wilderness, Santa Rosa, Cahuilla Mountain and Bighorn Mountain Wilderness, Bighorn Mountain. Forest headquarters are located in the city of San Bernardino, California, San Bernardino. There are district offices in Lytle Creek, California, Lytle Creek, Idyllwild, California, Idyllwild, and Fawns ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Jeffrey Pine
''Pinus jeffreyi'', also known as Jeffrey pine, Jeffrey's pine, yellow pine and black pine, is a North American pine tree. It is mainly found in California, but also in the westernmost part of Nevada, southwestern Oregon, and northern Baja California.Safford, H.D. 2013. Natural Range of Variation (NRV) for yellow pine and mixed conifer forests in the bioregional assessment area, including the Sierra Nevada, southern Cascades, and Modoc and Inyo National Forests. Unpublished report. USDA Forest Service, Pacific Southwest Region, Vallejo, CA/ref> It is named in honor of its botanist documenter John Jeffrey (botanist), John Jeffrey. Description ''Pinus jeffreyi'' is a large coniferous evergreen tree, reaching tall, rarely up to tall, though smaller when growing at or near tree line. The leaves are needle-like, in bundles of three, stout, glaucous gray-green, long. The cones are long, dark purple when immature, ripening pale brown, with thinly woody scales bearing a short, shar ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Joshua Tree
''Yucca brevifolia'' is a plant species belonging to the genus ''Yucca''. It is tree-like in habit, which is reflected in its common names: Joshua tree, yucca palm, tree yucca, and palm tree yucca. This monocotyledonous tree is native to the arid Southwestern United States, specifically California, Arizona, Utah, and Nevada, and to northwestern Mexico It is confined mostly to the Mojave Desert between elevation. It thrives in the open grasslands of Queen Valley and Lost Horse Valley in Joshua Tree National Park. Other regions with large populations of the tree can be found northeast of Kingman, Arizona in Mohave County; and along U.S. 93 between the towns of Wickenburg and Wikieup, a route which has been designated the Joshua Tree Parkway of Arizona. The common name Joshua tree apparently comes from Christian iconography. Taxonomy The Joshua tree is also called ''izote de desierto'' (Spanish, "desert dagger"). It was first formally described in the botanical literature as '' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lucerne Valley, California
Lucerne Valley is a census-designated place (CDP) and valley landform in the southern Mojave Desert, in western San Bernardino County, California. Geography The geographic valley is defined by the surrounding Granite Mountains, Ord Mountains, and San Bernardino Mountains. Lucerne Valley lies east of the Victor Valley, whose population nexus includes Victorville, Apple Valley, Adelanto and Hesperia. It is east of Apple Valley, and north of Big Bear Lake. Distant surrounding communities include Yucca Valley which lies east via State Route 247/Old Woman Springs Road, and Barstow, which is north via State Route 247/Barstow Road. The transportation nexus of Lucerne Valley is where State Route 247 and State Route 18 are connected by Old Woman Springs and Barstow Roads. The two highways do not have a direct junction. In San Bernardino County, Lucerne Valley's area is also identified as County Service Area (CSA) 29. While Lucerne Valley's "town limit" signs are within two m ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
San Bernardino County, California
San Bernardino County (), officially the County of San Bernardino, is a County (United States), county located in the Southern California, southern portion of the U.S. state of California, and is located within the Inland Empire area. As of the 2020 United States Census, 2020 U.S. Census, the population was 2,181,654, making it the fifth-most populous county in California and the List of the most populous counties in the United States, 14th-most populous in the United States. The county seat is San Bernardino, California, San Bernardino. While included within the Greater Los Angeles area, San Bernardino County is included in the Riverside, California, Riverside–San Bernardino, California, San Bernardino–Ontario, California, Ontario metropolitan statistical area, as well as the Los Angeles–Long Beach, California, Long Beach Greater Los Angeles Area, combined statistical area. With an area of , San Bernardino County is the List of the largest counties in the United States by ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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