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1964 Map of Island Park Dam

Name: 1964 Topographic Map of Island Park Dam
Creator: U.S. Geological Survey
Published: 1979
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 1979

About this map

Island Park Dam and its adjacent Island Park Reservoir dominate this 1964 Idaho landscape, serving as a central hub for water management and recreation within the Targhee National Forest. The map details the intricate shoreline of the reservoir, including the large I P Bills Island and numerous specialized sites like Jackson Landing Campground and the Buttermilk Campground. The flow of the Henrys Fork is a primary geographical feature, winding past landmarks such as Coffee Pot Rapids and under the Mile 102 Footbridge.

South of the dam, the terrain transitions into the high elevations of Thurmon Ridge, while the confluence of the Buffalo River and Henrys Fork highlights the region's complex hydrology. Settled pockets like McCrea Ranch and various trailer parks illustrate the mid-century development of this area as a destination for outdoor life, supported by a network of jeep trails and gaging stations that monitored the vital waters of the Snake River plain headwaters.