The small settlement of Barnum sits at the foot of the Bighorn Mountains, where the landscape is defined by a series of parallel ridges and high-altitude pastures. The complex water management system of the early twenty-first century is visible through a network of irrigation channels and storage sites, including the Winsor Ditch, White Panther Ditch, and Barnum Ditch. These waterways support the ranching economy of Johnson County, feeding into the Middle Fork Powder River and Red Fork Powder River. Distinctive topographical features such as Horse Pasture Ridge, Sawmill V Ridge, and Polson Weed Ridge illustrate the varying elevations and livestock-driving history of the region. Local travel is facilitated by named routes like Barnum Rd and Barnum Mountain Rd, which navigate around landmarks such as Buckbrush Butte and through the passage at Toll Gap.
48 named features on this map. Tap any name to fly to it.
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This is the sole edition of this map. No revisions or reprints were ever made.
1955 · Arminto
USGS Topo · 1:250,000
1958 · Arminto
USGS Topo · 1:250,000
1961 · Barnum
USGS Topo · 1:62,500
1962 · Arminto
USGS Topo · 1:250,000
1963 · Mayoworth
USGS Topo · 1:62,500
1967 · Tabletop
USGS Topo · 1:24,000
1967 · Gordon Creek
USGS Topo · 1:24,000
1967 · Turk Springs
USGS Topo · 1:24,000
1979 · Red Fork Powder River
USGS Topo · 1:24,000
1979 · Nowater Creek
USGS Topo · 1:100,000