Resting in the southeast corner of South Dakota, Yankton is the perfect place for you! Commonly referred to as the "River City", Yankton is located on the Missouri River, just downstream of the Gavins Point Damn and Lewis and Clark Lake, and just upstream of the confluence with the James River. Not to mention, the United States National Park Service's headquarters for the Missouri National Recreational River is located in Yankton. Nestled just minutes from Lake Yankton, Yankton Island Unit, the ...