Gallatin River
The Madison Range is a mountain range located in the Rocky Mountains of Montana and Idaho in the United States. The range was named in honor of future President of the United States, then U.S. Secretary of State James Madison by Meriwether Lewis as the Lewis and Clark Expedition travelled through Montana in 1805. The range extends from West Yellowstone, Montana to Bozeman, Montana and is flanked by the Madison River on the west and the Gallatin River to the east. The highest point in the range is Hilgard Peak at , a remote peak that wasn't climbed until 1948.