Thirtythree Mile Ranch stands as a primary point of human activity in this part of Natrona County, where the high plains of central Wyoming are defined by long-established ranching routes and watercourses. The landscape is shaped by the drainage of S Fork Casper Cr and distinctive geological features like Emigrant Gap Ridge and Tudor Draw. A network of rural roads, including Bucknum Rd and the aptly named Cattle Trail Dr, reflects the area's continued reliance on livestock and land management. The presence of Twelvemile Draw in the southeast corner further illustrates the importance of topographic markers in this expansive ranching corridor, providing researchers a clear look at the infrastructure that sustains the region's agricultural economy.
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1950 · Emigrant Gap
USGS Topo · 1:24,000
1950 · Goose Egg
USGS Topo · 1:24,000
1950 · Emigrant Gap NE
USGS Topo · 1:24,000
1951 · Oil Mountain
USGS Topo · 1:24,000
1951 · Emigrant Gap NW
USGS Topo · 1:24,000
1952 · Bishop
USGS Topo · 1:24,000
1955 · Arminto
USGS Topo · 1:250,000
1955 · Casper
USGS Topo · 1:250,000
1958 · Casper
USGS Topo · 1:250,000
1958 · Arminto
USGS Topo · 1:250,000