Mud islands, Missouri River, 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"After which is another, about a mile in length, lying in the middle of the river, and separated by a small channel, at its extremity, from another above it, on which we encamped. These two islands are called Mud islands."