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Patagonia Mountains
The Patagonia Mountains are a mountain range within the Coronado National Forest, and in Santa Cruz County, Arizona, United States. Geography The Patagonia Mountains begin near the Mexico border east of Nogales, Arizona. Running north, they are geologically related to the Santa Rita Mountains, which continue north beyond Sonoita Creek. The Santa Rita Mountains line up to the north across the Sonoita Valley. Both the Patagonias and the Santa Ritas are east of the Santa Cruz River Valley. Arizona State Route 82 winds through the Sonoita Valley along Sonoita Creek which flows between the Santa Ritas and the Patagonias. Patagonia Lake and the town of Patagonia are located in the Sonoita Valley.''Arizona Atlas & Gazetteer,'' DeLorme, 4th ed. 2001, p. 73 Some of the important peaks are, Mount Washington, the highest peak at 7,221 feet, Veteran's Peak, 7,211 feet, and Guajalote Peak, 6,490 feet. North of Guajalote Peak lies Soldier Basin. Above and to the east of the basin l ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mountain Range
A mountain range or hill range is a series of mountains or hills arranged in a line and connected by high ground. A mountain system or mountain belt is a group of mountain ranges with similarity in form, structure, and alignment that have arisen from the same cause, usually an orogeny. Mountain ranges are formed by a variety of geological processes, but most of the significant ones on Earth are the result of plate tectonics. Mountain ranges are also found on many planetary mass objects in the Solar System and are likely a feature of most terrestrial planets. Mountain ranges are usually segmented by highlands or mountain passes and valleys. Individual mountains within the same mountain range do not necessarily have the same geologic structure or petrology. They may be a mix of different orogenic expressions and terranes, for example thrust sheets, uplifted blocks, fold mountains, and volcanic landforms resulting in a variety of rock types. Major ranges Most ge ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Harshaw, Arizona
Harshaw is a ghost town in Santa Cruz County in the southeastern part of the U.S. state of Arizona. The town was settled in the 1870s, in what was then Arizona Territory. Founded as a mining community, Harshaw is named after the cattleman-turned-prospector David Tecumseh Harshaw, who first successfully located silver in the area. At the town's peak near the end of the 19th century, Harshaw's mines were among Arizona's highest producers of ore, with the largest mine, the Hermosa, yielding approximately $365,455 in bullion over a four-month period in 1880. Throughout its history, the town's population grew and declined in time with the price of silver, as the mines and the mill opened, closed, and changed hands over the years. By the 1960s, the mines had shut down for the final time, and the town, which was made part of the Coronado National Forest in 1953, became a ghost town. Today, all that remains of Harshaw are a few houses, some building foundations, two small cemeteries, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Madrean Sky Islands Mountain Ranges
The Madrean Region (named after the Sierra Madre Occidental) is a floristic region within the Holarctic Kingdom in North America, as delineated by Armen Takhtajan and Robert F. Thorne. It occupies arid or semiarid areas in the southwestern United States and northwestern Mexico and is bordered by the Rocky Mountain Region and North American Atlantic Region of the Holarctic Kingdom in the north and in the east, Caribbean Region of the Neotropical Kingdom in the south. The Madrean Region is characterized by a very distinct flora with at least three endemic families ( Fouquieriaceae, Simmondsiaceae, and Setchellanthaceae). Crossosomataceae, Garryaceae, Lennoaceae, Limnanthaceae and Stegnospermataceae have their principal development here; for Onagraceae, Polemoniaceae and Hydrophyllaceae it is the major center of diversity. More than 250 genera and probably more than half of the species of the region are endemic to it according to Takhtajan. Floristic provinces The region is subd ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Madrean Sky Island Mountain Ranges – Sonoran – Chihuahuan Deserts
This is a list of mountain ranges in the Madrean Sky Islands ecoregion within the Sonoran and Chihuahuan Deserts of the Southwestern United States and northwestern Mexico. The list is presented both alphabetically and by political territory. The elevation (in feet) of the highest point in each range is indicated in parentheses. Alphabetical list *Animas Mountains (8565)—Hidalgo County, New Mexico *Atascosa Mountains (6440)—Santa Cruz County, Arizona * Baboquivari Mountains (Arizona) (7730)—Pima County, Arizona *Chiricahua Mountains (9759)—Cochise County, Arizona * Dos Cabezas Mountains (8354)—Cochise County, Arizona * Dragoon Mountains (7512)—Cochise County, Arizona *Galiuro Mountains (7663)—Cochise, Graham, and Gila counties, Arizona) *Guadalupe Mountains (5280)—Hidalgo County, New Mexico, and Cochise County, Arizona *Huachuca Mountains (9466)—Cochise and Santa Cruz counties, Arizona, and Sonora, Mexico *Little Dragoon Mountains (6588)—Cochise County, Arizon ... [...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''–Pi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cordillera
A cordillera is an extensive chain and/or network system of mountain ranges, such as those in the west coast of the Americas. The term is borrowed from Spanish, where the word comes from , a diminutive of ('rope'). The term is most commonly used in physical geography p. 687 (Encyclopedia Americana Corp., 1918): "It is used particularly in physical geography, although in geology also it is sometimes applied...." and is particularly applied to the various large |
Sierra Madre Occidental
The Sierra Madre Occidental is a major mountain range system of the North American Cordillera, that runs northwest–southeast through northwestern and western Mexico, and along the Gulf of California. The Sierra Madre is part of the American Cordillera, a chain of mountain ranges (cordillera) that consists of an almost continuous sequence of mountain ranges that form the western 'sounds' of North America, Central America, South America and West Antarctica. Etymology The Spanish name ''sierra madre'' means "mother mountain range" in English, and ''occidental'' means "western", these thus being the "Western mother mountain range". To the east, from the Spanish ''oriental'' meaning "eastern" in English, the Sierra Madre Oriental range or "Eastern Mother Mountains" runs generally parallel to the Sierra Madre Occidental along eastern Mexico and the Gulf of Mexico. The range extends from northern Sonora, a state near the Mexico–U.S. border at Arizona, southeastwards to the T ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sky Island
Sky islands are isolated mountains surrounded by radically different lowland environments. The term originally referred to those found on the Mexican Plateau, and has extended to similarly isolated high-elevation forests. The isolation has significant implications for these natural habitats. The American Southwest region began warming up between and 10,000 years BP and atmospheric temperatures increased substantially, resulting in the formation of vast deserts that isolated the sky islands. Endemism, altitudinal migration, and relict populations are some of the natural phenomena to be found on sky islands. The complex dynamics of species richness on sky islands draws attention from the discipline of biogeography, and likewise the biodiversity is of concern to conservation biology. One of the key elements of a sky island is separation by physical distance from the other mountain ranges, resulting in a habitat island, such as a forest surrounded by desert. Some sky isl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ecoregion
An ecoregion (ecological region) or ecozone (ecological zone) is an ecologically and geographically defined area that is smaller than a bioregion, which in turn is smaller than a biogeographic realm. Ecoregions cover relatively large areas of land or water, and contain characteristic, geographically distinct assemblages of natural communities and species. The biodiversity of flora, fauna and ecosystems that characterise an ecoregion tends to be distinct from that of other ecoregions. In theory, biodiversity or conservation ecoregions are relatively large areas of land or water where the probability of encountering different species and communities at any given point remains relatively constant, within an acceptable range of variation (largely undefined at this point). Three caveats are appropriate for all bio-geographic mapping approaches. Firstly, no single bio-geographic framework is optimal for all taxa. Ecoregions reflect the best compromise for as many taxa as possible. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Madrean Sky Islands
The Madrean Sky Islands are enclaves of Madrean pine–oak woodlands, found at higher elevations in a complex of small mountain ranges in southern and southeastern Arizona, southwestern New Mexico, and northwestern Mexico. The sky islands are surrounded at lower elevations by the Sonoran and Chihuahuan deserts. The northern west–east perimeter of the sky island region merges into the higher elevation eastern Mogollon Rim and the White Mountains of eastern Arizona (southern Anasazi region). The sky islands are the northernmost of the Madrean pine–oak woodlands, and are classified as part of the Sierra Madre Occidental pine–oak forests ecoregion, of the tropical and subtropical coniferous forests biome. The sky islands were isolated from one another and from the pine–oak woodlands of the Sierra Madre Occidental to the south by the warming and drying of the climate since the ice ages. There are approximately 27 Madrean sky islands in the United States, and 15 in north ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Canelo Hills
The Canelo Hills are a range of low mountains or hills in eastern Santa Cruz County, Arizona. The range consists of a series of northwest–southeast trending ridges extending from the Sonoita Creek valley southwest of Sonoita to the Parker Canyon Lake area in southwest Cochise County, Arizona. The Canelo Hills merge with the Huachuca Mountains to the southeast. The San Rafael Valley lies to the southwest of the range and the Patagonia Mountains lie to the west across the Harshaw Creek valley. The Canelo Hills Cienega Reserve and the ghost town of Canelo, Arizona, are located on the eastern side of the hills. Geology The Canelo Hills are underlain by northwest striking folded and faulted Permian sedimentary rocks and Jurassic–Triassic volcanic rocks. The southwest margin extending toward the Patagonias is underlain by Cretaceous–Eocene volcanics. The southern end of the Canelo Hills contain evidence for a volcanic caldera, the Parker Canyon Caldera. This caldera is ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
San Rafael Valley
The San Rafael Valley is a high intermontane grass valley in eastern Santa Cruz County, Arizona. The valley is bounded to the west by the Patagonia Mountains, to the north and northeast by the Canelo Hills and to the east by the Huachuca Mountains in Cochise County. The valley forms the headwaters of the Santa Cruz River which flows south into Sonora, Mexico just east of the historic Lochiel townsite. The San Rafael de la Zanja Land Grant lies in the valley center just north of Lochiel. The Nature Conservancy purchased the former land grant ranch in 1998 and Arizona established the "San Rafael State Natural Area" in the valley in 1999 on the southern part of that property. The protected areas are not open to the public. The land grant is privately owned. The State Natural Area is south of the land grant, and borders Mexico. In 2008, the San Rafael Ranch headquarters was added to the National Register of Historic Places as the "San Rafael Ranch Historic District". Huachuca ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
