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1969 Map of Big Sandy Opening

Name: 1969 Topographic Map of Big Sandy Opening
Creator: U.S. Geological Survey
Published: 1973
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 1973

About this map

Bridger Wilderness and the Bridger National Forest dominate this alpine landscape, where the headwaters of the Big Sandy River and East Fork River emerge from high mountain lakes. The 1969 field survey details a complex network of backcountry infrastructure, including the Big Sandy Campground and numerous designated routes like the Pack Trail and Driveway Trail. The presence of Muddy Ridge Spring and Iron Creek Meadows indicates the vital water sources and grazing lands that supported seasonal activity in these high elevations.

Terrain features such as Laturio Mountain and Irish Canyon define the drainage patterns of Willow Creek and Beaver Creek. The map documents a moment in time before many backcountry roads were restricted, showing early access via the Wheeler Ranch Road and various Jeep Trails that connect remote points like Muddy Lake and Poston Meadows. This record is essential for understanding the historical accessibility and management of the Wind River Range foothills.