2015 Map of Elk Point NE

About this map

The Big Sioux River carves a winding path along the state boundary, defining the transition between Union Co, South Dakota, and Plymouth Co, Iowa. This 2015 survey reveals a landscape shaped by hydrology and agricultural grid patterns, where the river's tight oxbows and meanders contrast with the straight alignments of rural thoroughfares like 240th St and Bluebird Ave. Small tributaries including Rock Cr and Deer Cr drain the uplands toward the river valley, while Horseshoe Lake sits as a remnant of the river's changing course over time.