Collier's New Encyclopedia (1921)/Madison River

MADISON RIVER, a stream of Montana rising in the Rocky Mountains; at an elevation of 8,300 feet above the sea-level, running nearly N. through Madison county, passing through several deep cañons interspersed with picturesque valleys, and uniting with the Jefferson Fork of the Missouri at the Three Forks, on the W. border of Gallatin county; length about 230 miles.