
The boundary between Fergus and Petroleum Counties splits a landscape defined by expansive drainage basins and the vestiges of early twentieth-century infrastructure. Small settlements such as Roy and Teigen anchor the western reaches, while the isolated community of Valentine sits among the northern coulees. The transportation history of the region is etched into the terrain by an Old Railroad Grade that parallels McDonald Creek, tracing the path of former rail lines that once connected these ranching hubs.
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This is the sole edition of this map. No revisions or reprints were ever made.
1889 · Big Snowy Mountain
USGS Topo · 1:250,000
1893 · Big Snowy Mountain
USGS Topo · 1:250,000
1941 · Judith Peak
USGS Topo · 1:62,500
1943 · Landusky
USGS Topo · 1:125,000
1944 · Judith Peak
USGS Topo · 1:62,500
1954 · Hessler Ridge
USGS Topo · 1:24,000
1954 · Carter Coulee
USGS Topo · 1:24,000
1954 · Jordan
USGS Topo · 1:250,000
1954 · Forsyth
USGS Topo · 1:250,000
1954 · Roundup
USGS Topo · 1:250,000