 Further exploration of Indiana led to the French establishing an important trade route between Canada and Louisiana via the Maumee and Wabash rivers.The French built a series of forts and outposts in Indiana as a hedge against the westward expansion of the British colonies from the east coast of North America and to encourage trade with the native tribes.The tribes were able to procure metal tools, cooking utensils, and other manufactured items in exchange for animal pelts.