2015 Map of Gavins Point Dam

About this map

Gavins Point Dam anchors this landscape where the Missouri River forms the state line between South Dakota and Nebraska. The reservoir known as Lewis and Clark Lake dominates the northwest, while the waters below the dam feed into Lake Yankton and the protected Missouri National Recreation River. On the northern shore, the city of Yankton serves as a regional hub, featuring Mt Marty College and an extensive grid of streets such as Riverside Drive and Chalkstone Road. Across the river, the Nebraska side is defined by smaller communities like Aten and Menominee, along with the prominent Calumet Bluff. Rural cemeteries including Aten Cem and Beaver Creek Cem provide critical touchpoints for genealogical research in this border region. The mapping of the Kaiser Ditch and Antelope Creek highlights the intricate drainage and irrigation systems essential to the agricultural valley.