The Jefferson, Madison, and Gallatin Rivers join in Montana to form this river, which then flows past Bismarck, Omaha, and Kansas City.
This river's tributaries include the Niobrara and the Marias. The Milk River flows into this river at Fort Peck, while the James River flows into it near Yankton. Billings lies on one tributary of this river, on which Lakes Oahe and Francis Case can be found. The Garrison Dam forms Lake Sakakawea on this river, which flows past Great Falls, (*) Council Bluffs, and Sioux City before meeting with the Platte River. The Jefferson, Madison, and Gallatin Rivers join in Montana to form this river, which then flows past Bismarck, Omaha, and Kansas City. For ten points, name this longest tributary of the Mississippi river.
This river's tributaries include the Niobrara and the Marias.
Missouri River