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1991 Map of Sunshine Reservoir

Name: 1991 Topographic Map of Sunshine Reservoir
Creator: U.S. Geological Survey
Published: 1997
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 1997

About this map

The Greybull River valley serves as the centerpiece of this Park County survey, where complex irrigation networks like the Sunshine Supply Ditch and Upper Sunshine Basin Ditch divert water toward the Sunshine Reservoir. This area reflects a high-plains landscape defined by petroleum extraction and ranching infrastructure, most notably at the Pitchfork Oil Field and numerous oil wells and tanks scattered across the basin.

To the west, the boundary of the Shoshone National Forest meets the high ridges of Sheep Point, while prominent landforms like Schaub Butte and Pappapau Butte dominate the northern horizon. The presence of several prospects and drill holes indicates a period of active mineral and resource exploration throughout the Sunshine region. The map also records early transport and water management through labels such as the Aband Ditch, providing a window into the evolution of local water rights and land use.