Scarce regional map of the Wyoming Territory, Montana Territory, Dakota Territory and Nebraska, colored by counties and showing towns, mountains, rivers, railroads, etc., published by J. David Williams.
This map was originally engraved in the late 1850s as part of a wall map by Rogers & Johnston, and represents a unique and long running collaboration between American and British cartographic publishers. One of the few maps to show Wyoming with only 5 counties. Extensive Indian notes, forts, early roads, etc. An excellent early regional map.