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1956 Map of Grassy Lake Reservoir

Name: 1956 Topographic Map of Grassy Lake Reservoir
Creator: U.S. Geological Survey
Published: 1986
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 1986

About this map

Yellowstone National Park, Targhee National Forest, and Grand Teton National Park converge in this high-altitude landscape where the headwaters of the Falls River and Boone Creek systems carve through the Pitchstone Plateau. The map highlights a remote wilderness interior before the era of widespread development, dominated by complex water systems like Grassy Lake Reservoir and the Bechler River.

Historically significant landmarks include the Porter Ranch and the Patrol Cabin, alongside numerous named waterfalls such as Union Falls, Terraced Falls, and Rainbow Falls. These features, alongside named heights like Survey Peak and Hominy Peak, illustrate the challenging terrain that necessitated the established Bechler River Trail and Winegar Trail. The area’s varied hydrology is further evidenced by isolated basins like Bechler Meadows and Squirrel Meadows, which serve as critical drainage points for the surrounding peaks.