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1986 Map of Glass Mountain

Name: 1986 Topographic Map of Glass Mountain
Creator: U.S. Geological Survey
Published: 1986
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 1986

About this map

Glass Mountain and its surrounding high-altitude drainage systems dominate this mid-1980s provisional survey of Mono County. Set within the Inyo National Forest, the landscape is defined by a series of prominent ridges and deep incisions like Dexter Canyon and O'Harrel Canyon. The intricate hydrology of the region is traced through the seasonal and permanent flows of Wet Creek, McGee Creek, and Sawmill Creek, which carve through the volcanic and metamorphic terrain.

The map reveals a pattern of natural clearings and meadowlands, such as McGee Meadow and the area near Kelty Meadows Creek, which often served as critical water sources and grazing lands in this arid part of the Eastern Sierra. The presence of Glass Mountain Ridge and Black Mountain highlights the significant vertical relief and geological complexity that governed access and movement through this part of the wilderness prior to the modern era of Forest Service management.