Yankton River, South Dakota, United States (Google Maps ⧉, OpenStreetMap ⧉)
Referenced In
History of the Expedition under the Command of Captains Lewis and Clark / To the Sources of the Missouri, Thence Across the Rocky Mountains and Down the River Columbia to the Pacific Ocean
by Meriwether Lewis, William Clark"We are informed by Mr. Gravelines, who had passed through that country, that the Yankton or Jacques river rises about forty miles to the east or northeast of this place,"