The Missouri River and its widening into Lake Francis Case dominate this Missouri River landscape, serving as the primary geographic divide between Chamberlain in Brule County and Oacoma in Lyman County. The Lewis and Clark Memorial Bridge provides the vital connection between these riverfront communities, while the local infrastructure is mapped out from the Chamberlain Municipal Airport to the detailed grid of streets including S Main St and S Court Land St. Local history researchers will find the Riverview Cem perched overlooking the river valley, a significant site for genealogical study. The terrain is marked by distinctive drainages such as Tischudy Gulch, Pontoon Cr, and American Cr, which carve through the high bluffs that frame this segment of the Missouri River valley.
53 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.
1935 · Chamberlain
USGS Topo · 1:62,500
1939 · Chamberlain
USGS Topo · 1:62,500
1940 · Iona
USGS Topo · 1:62,500
1941 · Pukwana
USGS Topo · 1:62,500
1944 · Iona
USGS Topo · 1:62,500
1951 · Pukwana
USGS Topo · 1:62,500
1952 · Oacoma
USGS Topo · 1:24,000
1952 · Iona NW
USGS Topo · 1:24,000
1955 · Mitchell
USGS Topo · 1:250,000
1959 · Mitchell
USGS Topo · 1:250,000