Collection search - The Country from the Lead Mines on the Mississippi through the Great Lakes, A route to New York from the Mississippi to Chicago and Grand River in Michigan, and thence by Rail Road to Huron, and thence by Rail Road to Lake Ontario, Saving 500 Miles or more, in travelling from New York to Chicago and Wisconsin Territroy, the Shortest Commercial Route to the West. Made at the request of C. Butler Esqr., New York by I.G.S. 14th Dec. 1836. [cartographic material]