Dearborn River, Montana, 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"…At three miles from our camp we reached a stream, issuing from the mountains to the southwest, though it only contains water for a width of thirty feet… and we called it Dearborn’s river."
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"…divides the waters of the Missouri from those of the Columbia passing the north part of a mountain and crossing Dearborn’s river 35 68"