An Accompaniment to Mitchell's Reference and Distance Map of the United States, Containing an Index of All the Counties, Districts, Townships, Towns, Etc., in the the Union; Together with an Index of the Rivers; by which Any County, District, Township, &c. Or River, May be Found on the Map, Wihout Difficulty: Also, a General View of the United States, and the Several States and Territories; with an Account of Actual and Prospective Internal Improvements Throughout the Union: the Whole, in Connection with the Map, Illustrating the Geography, Topography, and Statistics of the Union, in a More Complete and Satisfactory Manner Than Has Been Hitherto Attempted