Central Wyoming Territory Topographic Survey wagon trails mines 1878 Hayden mapPart of Central Wyoming. U. S. Geological Survey of the Territories F. V. Hayden. (Old Maps, 19th Century Maps, Americana, United States, Wyoming, Topographical Maps). Issued 1878, Washington D. C. by U. S. G. S. Late 19th century lithographed topographical map. Very detailed, showing numerous mines and camps, the old wagon trail roads, terrain features and named mountains. Original fold lines as issued. Clean example, some short splits along the fold