Most of the area that is now Wyoming, except for a small attachment remaining with Idaho territory, became part of Dakota territory in May of1864, for a four-year period until Wyoming, itself, became a territory in 1868. Not the lightly engraved…
The primary mission of the forces commanded by Brigadier General, W.S. Harney in 1855 was to suppress the Sioux in the Dakota country, not yet a territory. He was accompanied by army topographical engineer, Lt. G.K. Warren and geologist, Dr. F.V.…
An 1881 County and Township map by S.A. Mitchell of Philadelphia. Seven counties are shown in Wyoming, the map not reflecting that the legislative assembly had changed the name of Pease Country to Johnson, two years earlier. Fort Mc Kinney is…
From an atlas produced by S. Augustus Mitchell of Philadelphia. This 1870 rendering reflects the construction of the Denver Pacific Railroad, joining the Union Pacific at Cheyenne, from the south.