
The Missouri River and Big Sioux River converge at the tristate junction of Iowa, Nebraska, and South Dakota, anchoring a landscape where civic centers and riverfront recreation meet. Modern residential and leisure developments like Dakota Dunes and Millis Beach sit alongside deep-rooted institutional anchors, including the Woodbury County Courthouse in Sioux City and the Dakota County Courthouse in Dakota City. The area's commemorative history is evident at the Chief War Eagle Memorial overlooking the Sioux Bend, while Floyds Bluff rises prominently on the Iowa side of the valley.
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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 · Sioux City South
USGS Topo · 1:24,000
1963 · Sioux City North
USGS Topo · 1:24,000
1963 · Jefferson
USGS Topo · 1:24,000
1964 · Sergeant Bluff
USGS Topo · 1:24,000