- Peninsular Ranges
state = Baja California Sur
state1 = Baja California
state2 = California
Picacho del Diablo
The Peninsular Ranges (also called the Lower California province [cite book | last = Benke | first = Arthur C. | authorlink = | coauthors = Cushing, Colbert E. | title = Rivers of North America | publisher = Academic Press | date = 2005 | pages = 543 | isbn = 0120882531 ] ) are a group of mountain ranges which stretch 1500 km (900 miles) from southern
Californiain the United Statesto the southern tip of Mexico's Baja California peninsula; they are part of the North American Coast Rangesthat run along the Pacific coast from Alaskato Mexico. Elevations range from 500 ft to 11,500 ft (150 m to 3,500 m).
Rocks in the ranges are dominated by
Mesozoicgranitic rocks, derived from the same massive batholith which forms the core of the Sierra Nevada Mountains in California. They are part of a geologic province known as the Salinian Blockwhich broke off the North American Plateas the San Andreas Faultand Gulf of Californiacame into being.
The Peninsular Ranges include the
Santa Ana Mountains, San Jacinto Mountainsand Laguna Mountainsof southern California with the Sierra Juarez, Sierra San Pedro Mártir, Sierra de la Giganta, and Sierra de la Lagunaof Baja California. Mount Palomar, home to Palomar Observatory, is in the Peninsular Ranges in San Diego County. The Peninsular ranges run predominantly north-south, unlike the Transverse Rangesto their north, which mostly run east-west.
terrestrial ecoregionscover portions of the Peninsular Ranges. Most of the ranges are in the Nearctic ecozone. On coast side of ranges, California chaparral and woodlandsecoregion covers the northern portion of the range, in southern California and northern Baja California. Baja California desertecoregion runs along the coast side of the southern portion of the Peninsular Ranges. On eastern side of ranges, Sonoran Desertecoregion covers southeastern California and northeastern Baja California as far south as the town of Loreto, Baja California Sur. Anza-Borrego Desert State Park, on the eastern side of the Peninsular Ranges in San Diego County, is famous for its springtime profusion of Sonoran Desert wildflowers. The Gulf of California xeric scrubecoregion covering the southeastern portion of the peninsula and the islands of the Gulf of California.
The higher portions of the Peninsular Ranges, especially the west-facing slopes, are home to
coniferous and mixed forests. Cleveland National Forestcovers much of the southern California Peninsular Ranges, and includes oakwoodlands and forests of Jeffrey Pine("Pinus jeffreyi") and Coulter Pine("P. coulteri"). Sierra Juarez and San Pedro Martir pine-oak forestscover upper slopes of Sierra Juarez and San Pedro Martir ranges. These isolated forests, predominantly pines, White Fir, junipers and oaks, harbor many rare and endemic species.
The southern end of the Baja California Peninsula, including the
Sierra de la Laguna, was formerly an island, and evolved in relative isolation from the northern part of the peninsula. It is considered part of the Neotropic ecozone, and its flora and fauna share many affinities with southern Mexico and Central America. It includes three distinct ecoregions, the Sierra de la Laguna dry forests, Sierra de la Laguna pine-oak forests, and San Lucan xeric scrub.
Wikimedia Foundation. 2010.
См. также в других словарях:
Peninsular Ranges — Géographie Altitude 3 302 m, San Jacinto Peak Massif Chaînes côtières du Pacifique Longueur … Wikipédia en Français
Peninsular Ranges — p1f1 Peninsular Ranges Höchster Gipfel San Jacinto Peak (3.302 m) Lage Mexiko, Vereinigte Staaten Teil der Coast R … Deutsch Wikipedia
Pacific Coast Ranges — Malibu Canyon, Santa Monica Mountains The Pacific Coast Ranges (in Canada)  and the Pacific Mountain System (in the United States)  … Wikipedia
Transverse Ranges — The Transverse Ranges (or more accurately, the Los Angeles Ranges) are a group of mountain ranges of southern California, one of the various North American Coast Ranges that run along the Pacific coast from Alaska to Mexico. They begin at the… … Wikipedia
Transverse Ranges — San Gabriel Mountains … Deutsch Wikipedia
California Coast Ranges — For the entire range of the Pacific Rim, see Pacific Coast Ranges. California Coast Range Range Santa Lucia Range … Wikipedia
List of mountain ranges — Physiographic world map with mountain ranges and highland areas in brown and gray colors This is a list of mountain ranges organized alphabetically by continent. Ranges on other astronomical bodies are listed afterward. Contents … Wikipedia
Pacific Coast Ranges — Die Liste der Gebirgsketten an der nordamerikanischen Pazifikküste enthält eine Reihe von Gebirgszügen, die von Alaska bis in den Süden Mexikos reichen. Sie sind alle durch plattentektonische Kräfte entstanden, als die Farallon Platte,… … Deutsch Wikipedia
Coast Ranges — Chaînes côtières du Pacifique Chaînes côtières du Pacifique Géographie Altitude 5 959 m, Mont Logan … Wikipédia en Français
Geography of California — Covering an area of 163,696 sq mi (423,970 km2), California is geographically diverse. The Sierra Nevada Mountains, the fertile farmlands of the Central Valley, and the arid Mojave Desert of the south are some of the major geographic… … Wikipedia