are there any dams over here?
Yes, the Fort Peck Dam,  Garrison Dam.
Missouri River
Farther on, the river passes through the Fort Peck Dam, and immediately downstream, the Milk River joins from the north.

Flowing eastward through the plains of eastern Montana, the Missouri receives the Poplar River from the north before crossing into North Dakota where the Yellowstone River, its greatest tributary by volume, joins from the southwest. At the confluence, the Yellowstone is actually the larger river. 
where does the missouri river start and stop It rises  in the Rocky Mountains of western Montana, the Missouri flows east and south for before entering the Mississippi River north of St. Louis, Missouri. can you name a few rivers that add their water to this river? The Marias River, the Musselshell River,  the Milk River who were the early settlers here? Indigenous peoples of North America who have lived along the Missouri have historically had access to ample food, water, and shelter. can you name any of the early explorers here? Jolliet and Marquette became the first documented European discoverers of the Missouri River
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Missouri River [SEP] Course
Farther on, the river passes through the Fort Peck Dam, and immediately downstream, the Milk River joins from the north. Flowing eastward through the plains of eastern Montana, the Missouri receives the Poplar River from the north before crossing into North Dakota where the Yellowstone River, its greatest tributary by volume, joins from the southwest. At the confluence, the Yellowstone is actually the larger river. The Missouri then meanders east past Williston and into Lake Sakakawea, the reservoir formed by Garrison Dam. Below the dam the Missouri receives the Knife River from the west and flows south to Bismarck, the capital of North Dakota, where the Heart River joins from the west.