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Kofa Mountains
The Kofa Mountains (Yavapai: Wi:kasayeo) of Yuma and La Paz counties in Arizona is the central mountain range of the Kofa National Wildlife Refuge. The range lies about 60 miles northeast of Yuma in the southwestern part of the state. Kofa Wilderness takes up 547,719 acres of the refuge, making it the second largest wilderness area in Arizona. The equally extensive Castle Dome Mountains comprise the southern refuge border; the western end of the Tank Mountains are in the southeast of the wildlife refuge, and the New Water Wilderness in the New Water Mountains ends the extension of the Kofa National Wildlife Refuge to the north. Scenic "King Valley" is south of the Kofa Mountains between the Castle Dome Mountains. These mountains are home to a number of endemic or rare species including the Kofa Mountain Barberry '' Berberis harrisoniana''. In addition, it contains the only native California fan palms in the state of Arizona located high up in Palm Canyon. These are relicts of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Arizona
Arizona ( ; nv, Hoozdo Hahoodzo ; ood, Alĭ ṣonak ) is a state in the Southwestern United States. It is the 6th largest and the 14th most populous of the 50 states. Its capital and largest city is Phoenix. Arizona is part of the Four Corners region with Utah to the north, Colorado to the northeast, and New Mexico to the east; its other neighboring states are Nevada to the northwest, California to the west and the Mexican states of Sonora and Baja California to the south and southwest. Arizona is the 48th state and last of the contiguous states to be admitted to the Union, achieving statehood on February 14, 1912. Historically part of the territory of in New Spain, it became part of independent Mexico in 1821. After being defeated in the Mexican–American War, Mexico ceded much of this territory to the United States in 1848. The southernmost portion of the state was acquired in 1853 through the Gadsden Purchase. Southern Arizona is known for its desert cl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tertiary
Tertiary ( ) is a widely used but obsolete term for the geologic period from 66 million to 2.6 million years ago. The period began with the demise of the non-avian dinosaurs in the Cretaceous–Paleogene extinction event, at the start of the Cenozoic Era, and extended to the beginning of the Quaternary glaciation at the end of the Pliocene Epoch. The time span covered by the Tertiary has no exact equivalent in the current geologic time system, but it is essentially the merged Paleogene and Neogene periods, which are informally called the Early Tertiary and the Late Tertiary, respectively. The Tertiary established the Antarctic as an icy island continent. Historical use of the term The term Tertiary was first used by Giovanni Arduino during the mid-18th century. He classified geologic time into primitive (or primary), secondary, and tertiary periods based on observations of geology in Northern Italy. Later a fourth period, the Quaternary, was applied. In the early d ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mountain Ranges Of The Lower Colorado River Valley
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] |
Mountain Ranges Of The Sonoran 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 and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Yuma Desert
The Yuma Desert is a lower-elevation section of the Sonoran Desert in the southwestern United States and the northwest of Mexico. It lies in the Salton basin. The desert contains areas of sparse vegetation and has notable areas of sand dunes. With an average rainfall less than each year, it is among the harshest deserts in North America. Human presence is sparse throughout, the largest city being Yuma, Arizona, on the Colorado River and the border of California. Overview The desert includes the lower-elevation parts of the southwestern corner of Arizona, extending west to the Colorado River. On the other side of the river, in California, is the Colorado Desert region of the Sonoran Desert, also referred to as the Low Desert. Although the two regions are separated only by the Colorado River, numerous species of plant and animals live only on one side or the other, such as saguaro cactus, which occurs only east of the river. The Yuma Desert also includes the sandy plains of western ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mining In Arizona
Mining is the extraction of valuable minerals or other geological materials from the Earth, usually from an ore body, lode, vein, seam, reef, or placer deposit. The exploitation of these deposits for raw material is based on the economic viability of investing in the equipment, labor, and energy required to extract, refine and transport the materials found at the mine to manufacturers who can use the material. Ores recovered by mining include metals, coal, oil shale, gemstones, limestone, chalk, dimension stone, rock salt, potash, gravel, and clay. Mining is required to obtain most materials that cannot be grown through agricultural processes, or feasibly created artificially in a laboratory or factory. Mining in a wider sense includes extraction of any non-renewable resource such as petroleum, natural gas, or even water. Modern mining processes involve prospecting for ore bodies, analysis of the profit potential of a proposed mine, extraction of the desired materials ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gold Mines In The United States
Gold is a chemical element with the symbol Au (from la, aurum) and atomic number 79. This makes it one of the higher atomic number elements that occur naturally. It is a bright, slightly orange-yellow, dense, soft, malleable, and ductile metal in a pure form. Chemically, gold is a transition metal and a group 11 element. It is one of the least reactive chemical elements and is solid under standard conditions. Gold often occurs in free elemental (native state), as nuggets or grains, in rocks, veins, and alluvial deposits. It occurs in a solid solution series with the native element silver (as electrum), naturally alloyed with other metals like copper and palladium, and mineral inclusions such as within pyrite. Less commonly, it occurs in minerals as gold compounds, often with tellurium (gold tellurides). Gold is resistant to most acids, though it does dissolve in aqua regia (a mixture of nitric acid and hydrochloric acid), forming a soluble tetrachloroaurate anion. Gold is i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
:Category:Yuma Desert
{{commonscat, Yuma Desert *The Yuma Desert – in the Southwestern United States and northwestern Mexico. :*A lower-elevation section of the Sonoran Desert and Gran Desierto de Altar The Gran Desierto de Altar is one of the major sub-ecoregions of the Sonoran Desert, located in the Sonora, State of Sonora, in northwest Mexico. It includes the only active Erg (landform), erg dune region in North America. The desert extends acro .... Sonoran Desert Deserts and xeric shrublands in the United States Deserts of Arizona Deserts of the Lower Colorado River Valley Geography of Yuma County, Arizona Wikipedia categories named after deserts ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of LCRV Wilderness Areas (Colorado River)
The National Wilderness Preservation System includes 803 wilderness areas protecting of federal land . They are managed by four agencies: *United States National Park Service (NPS) *United States Forest Service (USFS) *United States Fish and Wildlife Service (FWS) *United States Bureau of Land Management (BLM) These wilderness areas cover about 4.5% of the United States' land area, an area larger than the state of California. About 52% of the wilderness area is in Alaska, with of wilderness. They are located in 44 states (excepting Connecticut, Delaware, Iowa, Kansas, Maryland, and Rhode Island) and Puerto Rico. The NPS has oversight of of wilderness at 61 locations. The USFS oversees of wilderness areas in 447 areas. The FWS has responsibility for in 71 areas. BLM oversees at 224 sites. Some wilderness areas are managed by multiple agencies. Some areas are designated wilderness by state or tribal governments. These are not governed by the Federal National Wilderne ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Mountain Ranges Of Arizona
There are 210 named mountain ranges in Arizona.This list also includes mountain ranges that are mostly in New Mexico and Sonora, Mexico, that extend into Arizona. Alphabetical list The southeast of Arizona, with New Mexico, northwest Chihuahua and northeast Sonora contain insular sky island mountain ranges, (the Madrean Sky Islands), or smaller subranges in association. There are also numerous Sonoran Desert ranges, or Arizona transition zone ranges. Northern and northeast Arizona also has scattered ranges throughout. #Agua Caliente Mountains–Yuma County and Maricopa County # Agua Dulce Mountains–Pima County # Aguila Mountains–Yuma County #Ajo Range–Pima County # Alvarez Mountains–Pima County # Aquarius Mountains–Mohave County # Artesa Mountains–Pima County #Artillery Mountains–Mohave County #Atascosa Mountains–Santa Cruz County #Aubrey Hills–Mohave County #''Baboquivari Mountains''–Pima Co ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Mountain Ranges Of Yuma County, Arizona
A list of mountain ranges of Yuma County, Arizona. '' Yuma, Arizona Winterhaven, California'' is on the Colorado River in the southern section of the Lower Colorado River Valley. Adjacent notable towns at this confluence of CaliforniaArizona, and Baja CaliforniaSonora, are Los Algodones, Baja California, and San Luis Rio Colorado, Sonora. Alphabetical list * Agua Caliente MountainsYuma County * Aguila MountainsYuma County * Bryan MountainsYuma County * Butler MountainsYuma County * Cabeza Prieta MountainsYuma County * Castle Dome MountainsYuma County * Copper MountainsYuma County * Gila Mountains (Yuma County)Yuma County * Kofa MountainsN. Yuma County(S. La Paz County) * Laguna Mountains (Arizona)Yuma County (see also: Laguna Mountains(Calif)) * Little Horn MountainsS. La Paz County(N. Yuma County) * Middle MountainsS. La Paz County(N. Yuma County) * Mohawk MountainsYuma County * Muggins MountainsYuma County * New Water MountainsS. La Paz County(connected to Kofa Mountains, N. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Opuntia
''Opuntia'', commonly called prickly pear or pear cactus, is a genus of flowering plants in the cactus family Cactaceae. Prickly pears are also known as ''tuna'' (fruit), ''sabra'', ''nopal'' (paddle, plural ''nopales'') from the Nahuatl word for the pads, or nostle, from the Nahuatl word for the fruit; or paddle cactus. The genus is named for the Ancient Greek city of Opus, where, according to Theophrastus, an edible plant grew and could be propagated by rooting its leaves. The most common culinary species is the Indian fig opuntia (''O. ficus-indica''). Description ''O. ficus-indica'' is a large, trunk-forming, segmented cactus that may grow to with a crown of over in diameter and a trunk diameter of . Cladodes (large pads) are green to blue-green, bearing few spines up to or may be spineless. Prickly pears typically grow with flat, rounded cladodes (also called platyclades) containing large, smooth, fixed spines and small, hairlike prickles called glochids that ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
