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1968 Map of Downs Mountain

Name: 1968 Topographic Map of Downs Mountain
Creator: U.S. Geological Survey
Published: 1987
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 1987

About this map

The Continental Divide serves as the central spine of this high-altitude landscape, where the borders of Fremont and Sublette counties meet. Extensive ice fields including the Continental Glacier, Downs Glacier, and Connie Glacier dominate the upper elevations, feeding a network of glacial lakes and high-mountain streams. The map documents a wilderness environment defined by prominent massifs such as Downs Mountain, Torrey Peak, and Yukon Peak, punctuated by geological landmarks like Bears Tooth and the sheer expanse of Ram Flat.

Drainage patterns flow away from the divide into three distinct forest jurisdictions: the Bridger National Forest, Shoshone National Forest, and the Bridger Wilderness. In the lower basins, numerous named water bodies like Upper Ross Lake, Bear Lake, and Mile Long Lake indicate a complex hydrological system shaped by glacial recession. This 1960s field-checked data captures the precise extent of perennial snow and ice before late-century climatic shifts.