2017 Map of Bond Bottom

About this map

The Missouri River carves a deep valley through the high plains of central South Dakota on this 2017 survey, defining the boundary between Lyman and Brule counties. This stretch of the river is dominated by the waters of Lake Francis Case, a reservoir created by the Fort Randall Dam. Along the northeastern shore, the settlement of Bond Bottom sits within a wide bend, while the prominent landmark Twin Butte rises to the southeast. The landscape is characterized by steep, eroded bluffs and seasonal drainage channels like Smith Cr, Elm Cr, and Fivemile Cr that cut toward the water. Large landforms such as Bailey Island remain visible within the river channel, reflecting the topographic shifts caused by damming the Missouri during the mid-20th century.