The expansive waters of Lake Oahe and the Missouri River dominate the western landscape of this quadrangle at the border of Sully Co and Hughes Co. This 2015 data reflects the modern hydrology of the region, where the Missouri's course is shaped by the Oahe Dam downstream. The map provides a detailed view of the dissected plains along the river's eastern bank, marked by several prominent drainage systems including Okobojo Cr, Cow Cr, and Spring Cr. Local transportation is defined by a network of rural roads and trails such as Fort Sully Trl and Yucca Ridge Trl, which follow the high ground between the river breaks. Land use is predominantly agricultural and recreational, with several access roads like Cow Creek Rd and Goose Pass Rd providing entry points to the water's edge and the surrounding rolling uplands.
24 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
1954 · Pierre
USGS Topo · 1:250,000
1958 · Pierre
USGS Topo · 1:250,000
1965 · Okobojo NE
USGS Topo · 1:24,000
1965 · Okobojo
USGS Topo · 1:24,000
1967 · Pierre NE
USGS Topo · 1:24,000
1967 · Okobojo SE
USGS Topo · 1:24,000
1973 · Iron Post Buttes SE
USGS Topo · 1:24,000
1973 · Willow Creek Butte
USGS Topo · 1:24,000