Vallée de l'Ohio
Christopher Gist (1706–1759) was a explorer, surveyor and frontiersman active in Colonial America. He was one of the first white explorers of the Ohio Country (the present-day states of Ohio, eastern Indiana, western Pennsylvania, and northwestern West Virginia). Gist is credited with providing the first detailed description of the Ohio Country to colonists in the Thirteen Colonies. At the outbreak of the French and Indian War, Gist accompanied Colonel George Washington on missions into this wilderness and saved Washington's life on two occasions.