The Missouri River defines the northern and eastern reaches of this South Dakota landscape, where the waters of Lake Francis Case push into the interior to form Whetstone Bay. This shoreline represents a transformed river valley, where the rising reservoir has created a complex network of inlets and peninsulas along the border of Charles Mix and Gregory counties. Inland, the terrain is characterized by a high-relief drainage system including Whetstone Creek, North Fork Whetstone Creek, and Truesdell Creek.
23 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.
1955 · Mitchell
USGS Topo · 1:250,000
1959 · Mitchell
USGS Topo · 1:250,000
1964 · Campbell Creek
USGS Topo · 1:24,000
1964 · Herrick NE
USGS Topo · 1:24,000
1964 · St. Charles
USGS Topo · 1:24,000
1964 · Whetstone Bay
USGS Topo · 1:24,000
1964 · South Scalp Creek
USGS Topo · 1:24,000
1964 · Bonesteel
USGS Topo · 1:24,000
1971 · Lucas SE
USGS Topo · 1:24,000
1979 · Castalia
USGS Topo · 1:24,000