
Missouri River and the expansive waters of Lake Oahe dominate this Central South Dakota landscape, where the border between Stanley and Hughes counties follows the old river channel. The terrain is defined by dramatic elevation changes from the water up to prominent plateaus like Peoria Flats and Giddings Flat. This area illustrates the vast Missouri River reservoir system, showing how the dammed water has transformed the traditional valley into a wide basin while preserving the rugged drainage patterns of the surrounding plains.
29 named features on this map. Tap any name to fly to it.
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This is the sole edition of this map. No revisions or reprints were ever made.
1924 · Pierre
USGS Topo · 1:62,500
1937 · Oahe
USGS Topo · 1:62,500
1953 · Teton
USGS Topo · 1:24,000
1953 · Oahe SW
USGS Topo · 1:24,000
1953 · Pierre SW
USGS Topo · 1:24,000
1954 · Pierre
USGS Topo · 1:250,000
1958 · Pierre
USGS Topo · 1:250,000
1973 · Iron Post Buttes SE
USGS Topo · 1:24,000
1973 · Iron Post Buttes SW
USGS Topo · 1:24,000
1973 · Willow Creek Butte
USGS Topo · 1:24,000