San Bernardino Mountains

The San Bernardino Mountains are a high and rugged mountain range in Southern California in the United States. Situated north and northeast of San Bernardino and spanning two California counties, the range tops out at 11,489 feet (3,502 m) at San Gorgonio Mountain – the tallest peak in all of Southern California. The San Bernardinos form a significant region of wilderness and are popular for hiking and skiing.

The mountains were formed about eleven million years ago by tectonic activity along the San Andreas Fault, and are still actively rising. Many local rivers originate in the range, which receives significantly more precipitation than the surrounding desert. The range's unique and varying environment allows it to maintain some of the greatest biodiversity in the state. For over 10,000 years, the San Bernardinos and their surrounds have been inhabited by indigenous peoples, who used the mountains as a summer hunting ground.

Spanish explorers first encountered the San Bernardinos in the late 1700s, naming the eponymous San Bernardino Valley at its base. European settlement of the region progressed slowly until 1860, when the mountains became the focus of the largest gold rush ever to occur in Southern California. Waves of settlers brought in by the gold rush populated the lowlands around the San Bernardinos, and began to tap the mountains' rich timber and water resources on a large scale by the late 19th century.

Recreational development of the range began in the early 1900s, when mountain resorts were built around new irrigation reservoirs. Since then, the mountains have been extensively engineered for transportation and water supply purposes. Four major state highways and the California Aqueduct traverse the mountains today; these developments have all had significant impacts on area wildlife and plant communities.

Read more about San Bernardino Mountains:  Geography, Geology, Ecology and Wildlife

Other articles related to "san bernardino mountains, san, mountain, san bernardino, mountains, san bernardinos":

Whitewater River (California) - Geography - San Bernardino Mountains
... The North Fork begins in the subalpine zone at about 10,000' (3,000 m.) on San Gorgonio Mountain and descends steeply southeast to the Middle Fork, which flows east through a wide arroyo ... The upper watershed is in the San Gorgonio Wilderness and San Bernardino National Forest, then it reaches land managed by the Bureau of Land Management ...
Transverse Ranges - Geography - Ranges
... Santa Barbara County, and include the Santa Ynez Mountains that run parallel to the coast behind Santa Barbara ... Also in Santa Barbara County, they include the San Rafael Mountains and the Sierra Madre Mountains, both of which extend approximately to the Ventura County line ... The Transverse Ranges also include the Topatopa Mountains and the Santa Susana Mountains of Ventura County and Los Angeles County, the Simi Hills, the Santa Monica ...
Little San Bernardino Mountains
... The Little San Bernardino Mountains are a short mountain range of the Transverse Ranges, located in southern California in the United States ... They extend for approximately 40 mi (64 km) southeast from the San Bernardino Mountains through San Bernardino and Riverside Counties to near the northeast edge of the Salton Sink and Salton Sea ...
San Bernardino Mountains - Ecology and Wildlife
... The San Bernardino Mountains, along with the nearby San Gabriel and San Jacinto ranges, is considered a sky island – a high mountain region whose plants and animals vary dramatically from those in the ... The San Bernardinos in particular comprise the largest forested region in Southern California, and support some 1,600 species of plants ... Deeper within the mountains, perennial streams fed by springs and lakes nourish stands of alders, willows and cottonwoods ...
Running Springs, California - Surroundings and Economy
... Running Springs is a mountain community in the San Bernardino Mountains ... It is an inholding in the San Bernardino National Forest ... of SR-18 and SR-330, it is a major gateway to the mountain communities of Lake Arrowhead, Arrowbear, Green Valley Lake, and Big Bear ...

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