Glass Mountain (California)

Glass Mountain, on the Inyo National Forest, is one of the tallest peaks in Mono County, California. The peak lies 20 miles (32 km) southeast of the shoreline of Mono Lake and is the highest point on the four-mile (6.4 km) long sinuous Glass Mountain Ridge.[3][4][5]

This article is about the peak in California. For other uses, see Glass Mountain.
Glass Mountain
Highest point
Elevation11,128 ft (3,392 m) NAVD 88[1]
Prominence3,180 ft (969 m)[2]
Coordinates37°46′30″N 118°42′31″W[1]
Geography
Glass Mountain in relation to the Long Valley Caldera
LocationMono County, California, U.S.
Parent rangeGlass Mountain Range
Topo mapUSGS Glass Mountain

The Glass Mountain Ridge forms the northeast boundary of Long Valley Caldera. It consists of a sequence of lava domes, flows, and welded pyroclastic flows of rhyolite composition that were erupted between 2.1 and 0.8 million years ago.[6] Obsidian, a naturally occurring volcanic glass, can be found on the mountain.[7]

Hot Creek with the Glass Mountains in the distance

References
  1. "Glass Mountain". NGS Data Sheet. National Geodetic Survey, National Oceanic and Atmospheric Administration, United States Department of Commerce. Retrieved 2009-08-06.
  2. "Glass Mountain, California". Peakbagger.com. Retrieved 2009-08-03.
  3. Glass Mountain, California–Nevada, 15 Minute Topographic Quadrangle, USGS, 1962
  4. Casa Diablo Mtn., California, 15 Minute Topographic Quadrangle, USGS, 1953
  5. Cowtrack Mtn, California, 15 Minute Topographic Quadrangle, USGS, 1962
  6. "Northeast rim of Long Valley Caldera and Glass Mountain, California". Long Valley Observatory. Archived from the original on 2009-09-05. Retrieved 2010-02-02.
  7. "Glass Mountain Range". SummitPost.org. Retrieved 2011-09-15.


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