Gold Basin and Mount Tukuhnikivatz, La Sal Mountains, San Juan County
Photographer: Ryhan Sempler © 2016
Tag Archive for: La Sal Mountains
La Sal Mountains, Grand and San Juan Counties, Utah
Photographer: Mark Milligan; ©2011
Mount Tukuhnikivatz, a prominent peak in the La Sal Mountains, is an erosional remnant of magma that rose from depth (but never reached the surface) about 28 million years ago, forcing through and pushing up the area’s layered sedimentary rocks. View from the U.S. Forest Service Warner Lake guard station.
La Sal Mountains, Grand and San Juan Counties, Utah
Photographer: Jay Hill
The La Sal Mountains, near Moab in southeastern Utah, are laccoliths formed when upwelling magma intruded into and bulged the overlying sedimentary rock layers upward. The magma did not reach the surface, but subsequent erosion of the softer sedimentary rocks exposed the peak-forming igneous rocks that rise above the surrounding landscape.
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The Utah Geological Survey (UGS) is a division of the Utah Department of Natural Resources. Several specialized programs comprise the UGS: Data Management, Energy & Minerals, Geologic Hazards, Geologic Information & Outreach, Geologic Mapping, Groundwater & Wetlands, and Paleontology.