can you name any of the early explorers here?
Jolliet and Marquette became the first documented European discoverers of the Missouri River
Missouri River
In May 1673, the French-Canadian explorer Louis Jolliet and the French explorer Jacques Marquette left the settlement of St. Ignace on Lake Huron and traveled down the Wisconsin and Mississippi Rivers, aiming to reach the Pacific Ocean. In late June, Jolliet and Marquette became the first documented European discoverers of the Missouri River, which according to their journals was in full flood. 
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.
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Missouri River [SEP] Early European explorers
In May 1673, the French-Canadian explorer Louis Jolliet and the French explorer Jacques Marquette left the settlement of St. Ignace on Lake Huron and traveled down the Wisconsin and Mississippi Rivers, aiming to reach the Pacific Ocean. In late June, Jolliet and Marquette became the first documented European discoverers of the Missouri River, which according to their journals was in full flood. "I never saw anything more terrific," Jolliet wrote, "a tangle of entire trees from the mouth of the Pekistanoui [Missouri] with such impetuosity that one could not attempt to cross it without great danger. The commotion was such that the water was made muddy by it and could not clear itself." They recorded "Pekitanoui" or "Pekistanoui" as the local name for the Missouri.