It receives the Milk and Musselshell Rivers near the Fort Peck Dam, while it is formed near the town of Three Forks from waterways including the Jefferson and Madison Rivers.
One of this river's largest tributaries joins it near the town of Buford before rising from the area around Younts Peak and Thorofare Mountain. It is stopped by the Oahe Dam and the Garrison Dam, the latter of which creates Lake Sakakawea. It receives the Milk and Musselshell Rivers near the Fort Peck Dam, while it is formed near the town of Three Forks from waterways including the Jefferson and Madison Rivers. It also flows past a series of cataracts called the Great Falls. For 10 points, name this U.S. river that joins the Mississippi near St. Louis.
One of this river's largest tributaries joins it near the town of Buford before rising from the area around Younts Peak and Thorofare Mountain.
{Missouri} River