A tributary of the Missouri River approximately 70 miles long, with its headwaters located in the Scapegoat Wilderness. The river flows through beautiful canyons and is surrounded by a stunning landscape. The water runs clear cold early in the season. Rainbow, Brown and Cutthroat trout call this river home. The Dearborn is best waded or floated in a raft. The window to float the Dearborn river can be short depending on spring runoff. The Dearborn can also get very low durning Montanas haying season as ranchers are pulling water from the river to irrigate their fields. Anglers fishing the Dearborn should be prepared to encounter a verity of different wildlife including bears. We recommend carrying bear spray when hiking or fishing the Dearborn River.