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.
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…