What area did Renee Robert La Salle claim for France

Mississippi River Valley

Explanation:

Ten years later, in 1682, Robert Cavalier Sieur de La Salle and a larger party of explorers followed much the same route as Marquette and Jolliet. But La Salle's journey brought him all the way to the Gulf of Mexico; where he claimed the Mississippi River Valley for his King and named it in his honor, Louisiana.

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