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1989 Map of Ashton

Name: 1989 Topographic Map of Ashton
Creator: U.S. Geological Survey
Published: 1989
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 1989

About this map

The Henrys Fork of the Snake River carves a central path through this landscape, which spans the high country where Idaho meets Wyoming and Montana. In the late 1980s, the region was defined by a mix of agricultural settlements and protected wilderness, anchored by the town of Ashton and nearby Marysville. The Union Pacific rail line runs north-south, providing a critical industrial link for the small communities of Drummond and Grainville.

In the north, the waters of the Island Park Reservoir and Henrys Lake dominate the volcanic plateau, surrounded by the expansive Targhee National Forest. The map captures the transition from the irrigated plains of the Snake River Valley to the high-elevation terrain of Big Bend Ridge and the western edge of Yellowstone National Park. Prominent landmarks like the Yellowstone Highway and Mesa Falls Scenic Byway illustrate the area's development as a gateway to the high plateaus and river canyons.