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USGS Banner with Coachella Valley as seen from Keyes View in Joshua Tree National Park
Western Earth Surface Processes Team

Geology of the Peninsular Ranges Province

See the following selected resource websites

Los Angeles Basin
San Bernardino Basin
March Airforce Base region

See also the following USGS website:

Geologic Map of the San Bernardino 30 x 60 Degree Quadrangle

Geologic Map of the Santa Ana 30 x 60 Degree Quadrangle

McCulloh, T.H., Beyer, L.A. and Morin, R.W., 2002, Mountain Meadows Dacite: Oligocene Intrusive Complex That Welds Together the Los Angeles Basin, Northwestern Peninsular Ranges, and Central Transverse Ranges, California: U.S. Geological Survey Professional Paper 1649 <>.

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Page Last Modified: May 26, 2006