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Lewis and Clark explored the Columbia River.
I think was the Missori and Mississippi river.
The Potomac
salmon
The Columbia River was first discovered around 1775 by Spanish explorers. The river was named by Robert Gray, an American captain who explored the river. His ship's name was Columbia, and the river was named after it.
The Nile River is the longest river in the world that 4160 miles a group of explorers travel along the entire now in xx days they traveled the same distance each day write an algebraic expression to find out each day's distance.
IN HIS LAIR DOWN BY THE COLUMBIA RIVER
Hudson traveled around the great lakes ,New York and James bay
Potomac River
The Columbia River is the major river in Washington.
which famous french explorers sailed down the mississippi river claiming it for france
Columbia river