Willow Run, 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"…thence on a course south 18° west for four miles, passing the head of a drain or ravine which falls into the Missouri below the great falls, and to the Willow run which has always a plentiful supply of good water and some timber:"