
The Hebgen Dam controls the upper flow of the Madison River in this 1980s landscape, which is defined by the legacy of dramatic geologic change. North of the dam lies Earthquake Lake, a permanent reminder of the seismic shifts that reshaped this drainage. The area within the Gallatin National Forest serves primarily as a recreational and conservation corridor, illustrated by several public facilities such as the Spring Creek Campground and Rumbaugh Campground situated along the shores of Hebgen Lake.
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This is the sole edition of this map. No revisions or reprints were ever made.
1950 · Hebgen Dam
USGS Topo · 1:62,500
1955 · Ashton
USGS Topo · 1:250,000
1958 · Ashton
USGS Topo · 1:250,000
1958 · West Yellowstone
USGS Topo · 1:62,500
1958 · Tepee Creek
USGS Topo · 1:62,500
1960 · Ashton
USGS Topo · 1:250,000
1964 · Targhee Pass
USGS Topo · 1:24,000
1964 · Targhee Peak
USGS Topo · 1:24,000
1964 · Henrys Lake
USGS Topo · 1:62,500
1986 · Madison Arm
USGS Topo · 1:24,000