Because the water wasn't clear... LOL
George Washington and the Continental Army were encamped at Valley Forge.
Orson Pratt and Erastus Snow were the lead elements of the advance party to scout out the valley and find the Donner trail. They arrived in the Salt Lake valley July 21, 1847, a full three days ahead of Brigham Young and the main body of Saints.
De Soto
rivera
George Washington arrived in Valley Forge with the continental army on December 19, 1777.
George Rogers Clark
valley fore wasnt a battle is was a battle against elemnets :)
The Aztecs.
The valley got its name from the persons who first mapped it. They were Huguenot explorers from the Mountain region of Fougere, France. They called it Vallee d'Fougere which was later anglicized to Valley Forge.
Hernando de Soto was the first person to lead an expedition to the Mississippi river.
It was the Aztec civilization.
Kaskaskia and Cahokia were captured near the present day city of St. Louis, Missouri by Clarks' expedition into the Ohio Valley.