The Sierra San Luis range is a mountain range in northwest Chihuahua , northeast Sonora , Mexico at the northern region of the Sierra Madre Occidental cordillera. The region contains sky island mountain ranges, called the Madrean Sky Islands , some separated from the Sierra Madre Occidental proper, and occurring in the northeastern Sonoran Desert , and extreme west-northwestern Chihuahuan Desert . Many of the ranges occur in southeast Arizona .
6-884: Most of Sierra San Luis is privately owned land. The mountain range and the range to the north, the Peloncillo Mountains of Hidalgo County , New Mexico, can be viewed from the west at the Leslie Canyon National Wildlife Refuge and the San Bernardino National Wildlife Refuge . The Rio Bavispe borders the southeast of Sierra San Luis and flows northwest around the Sierra del Tigre range. Sky islands often lead to geographic isolation ; (the tepuis of north-northeastern South America ). The Madrean Sky Islands are being studied for mammal movements,
12-567: A region of southeast Arizona , southwest New Mexico, northeast Sonora , and extreme northwest Chihuahua called the Madrean Sky Islands . They are tall mountain ranges isolated by surrounding flatlands and valleys with sky islands of isolated fauna and flora. Various corridors exist between some ranges; others are mostly isolated. Some ranges are lower elevation, with a reduced variety of habitats. The Peloncillo Mountains are mostly north-south trending, but curving northeasterly at
18-585: Is a major 35-mile (56 km) long mountain range southwest of New Mexico 's Hidalgo County , and also part of the New Mexico Bootheel region. The range continues to the northwest into Arizona as the Peloncillo Mountains of Cochise County, Arizona . The extreme southwest corner of the range also lies in Arizona. It is a linear range bordering the linear San Bernardino Valley of southeast Cochise County, Arizona. The Peloncillo Mountains lie in
24-571: The area. Fauna and flora: Rio Bavispe Reserve & Sierra del Tigre This article about a location in the Mexican state of Chihuahua is a stub . You can help Misplaced Pages by expanding it . This article about a location in the Mexican state of Sonora is a stub . You can help Misplaced Pages by expanding it . Peloncillo Mountains (Hidalgo County) The Peloncillo Mountains of Hidalgo County, ( Spanish language pelo , hair, pelón , hairless, bald; peloncillo , Little Baldy ),
30-512: The cats especially, bobcats , mountain lions , etc. An example study is for snakes , the Animas ridge-nosed rattlesnake, Crotalus willardi obscurus . It is being studied in 3 sky island ranges: Animas Mountains , the Peloncillos, and Sierra San Luis. North American beavers once flourished in the area, but their numbers have dwindled in the past few years and have become more rare in
36-430: The north end. They parallel the southwesterly-by-northeast San Bernardino Valley of Arizona, with various canyons and washes draining into the valley. Historical battles, and Indian Wars caused retreat into this mountain region; it was also access and escape routes into the safe haven ranges of northern Mexico. The highest peak is Gray Mountain at 6,928 feet (2,112 m). The region is famous for Skeleton Canyon and
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