The Big Sioux River snakes along the southeastern edge of this Union County landscape, defining the border between South Dakota and Iowa at the junction of Plymouth County. The rural settlement of Richland serves as a local hub near the river, while the smaller community of Spink occupies the northwestern corner. The terrain is defined by a dense network of watercourses including Brule Creek, Richland Creek, and Sayles Creek, which have shaped the local topography into a series of ridges and draws.
42 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.
1898 · Elk Point
USGS Topo · 1:125,000
1901 · Elk Point
USGS Topo · 1:125,000
1907 · Elk Point
USGS Topo · 1:125,000
1955 · Sioux City
USGS Topo · 1:250,000
1958 · Sioux City
USGS Topo · 1:250,000
1959 · Sioux City
USGS Topo · 1:250,000
1963 · Elk Point
USGS Topo · 1:24,000
1963 · Elk Point NE
USGS Topo · 1:24,000
1964 · Burbank
USGS Topo · 1:24,000
1969 · Chatsworth
USGS Topo · 1:24,000