1965 Map of Upper Slide Lake

About this map

The Gros Ventre River carves a path through this 1965 survey of the Teton National Forest, where steep ridgelines like the Gray Hills drop into the expansive Yellowjacket Flat. The landscape is defined by the geologically significant Upper Slide Lake, formed by historic landslides, and the remote Goosewing Guard Sta that managed this wilderness. Traces of early industrial interest appear at the Coal Mine and scattered Prospects in the northern draws. The map illustrates a high-altitude drainage network including Goosewing Creek and Lightning Creek, connected only by an intricate system of Pack Trails and Jeep Trails rather than established roads. This connectivity pattern reflects the mid-century wilderness management era before modern infrastructure reached deep into the backcountry, preserving the isolation of landmarks like Gunsight Pass and Echo Park.