
The confluence of the Moreau River and the Lake Missouri Oahe River dominates this landscape, reflecting a period of significant hydrological change along the Missouri River system. The map captures the flooded river valley at a normal pool elevation of 1608 feet, where former terrestrial features are submerged or transformed into peninsulas and inlets. The Cheyenne River Indian Reservation Boundary cuts diagonally across the reservoir, marking a clear administrative division between Dewey and Walworth counties.
14 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.
1953 · McIntosh
USGS Topo · 1:250,000
1958 · McIntosh
USGS Topo · 1:250,000
1968 · Moreau NW
USGS Topo · 1:24,000
1968 · Moreau NE
USGS Topo · 1:24,000
1968 · Akaska NW
USGS Topo · 1:24,000
1968 · Akaska SW
USGS Topo · 1:24,000
1968 · Moreau
USGS Topo · 1:24,000
1969 · Four Bear Creek
USGS Topo · 1:24,000
1970 · Steamboat Creek
USGS Topo · 1:24,000
1970 · Patch Skin Buttes
USGS Topo · 1:24,000