Pinto Basin Road Renovation
Pinto Basin Road is being renovated. On weekdays you may encounter travel delays of up to 30 minutes. Cholla Cactus Garden is closed on weekdays. Cottonwood Visitor Center hours are 9 to 4 on weekdays, 8 to 4 weekends. More »
Rattlesnake Canyon Will Remain Closed Through May
To provide additional time to mitigate the vandalism, Rattlesnake Canyon will remain completely closed to the public for another 30 days. More »
Within the park there are six distinct mountain ranges: the Little San Bernardino Mountains in the southwestern part; the Cottonwood, Hexie, and Pinto Mountains in the center; and the Eagle and Coxcomb Mountains in the eastern part. Both the southern and northern margins of the park are marked by steep escarpments that rise abruptly from the lower desert areas. Much of the park lies at elevations above 4,000 feet.
Between the park’s numerous mountain ranges, there are valleys, which are classified according to their method of formation. Queen Valley and Lost Horse Valley were formed by a difference in the rate of erosion between the rock underlying the valley itself and the rock composing the surrounding mountains. The mountainous rock is more resistant to erosion and therefore rises above the valleys. Pleasant Valley, on the other hand, was formed by down-dropped motion along faults that formed basins (called grabens). Some valleys have playas: lakes that may contain water a few weeks a year during the rainy season.
Did You Know?
Joshua Tree is crisscrossed with hundreds of faults, and is a great place to see raw rocks and the effects of earthquakes. The famous San Andreas Fault bounds the south side of the park and can be observed from Keys View. More...