Vermillion 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"Not any of this merchandise was destined for a higher point on the Missouri than the mouth of the Vermillion river, or the neighbourhood of the Yanktons of the river Demoin; of course, there will be a greater excess of goods…"
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"…the Arkansaw band, of six hundred warriors, who left them some years ago, under the command of a chief called the Bigfoot, and settled on the Vermillion river, a branch of the Arkansaw.…"