State Line Rd serves as the literal and figurative spine of this survey, marking the straight-edged boundary between Colorado and Nebraska. On the Nebraska side, the landscape is defined by the section-line grid of Perkins and Chase counties, where Venango Cem and Dodson Brothers Airport sit as isolated landmarks of local infrastructure. The Colorado portion in Phillips Co shows a similar high-plains agricultural pattern, though the road network, including Co Rd 40 and Co Rd 57, occasionally bends to accommodate the subtle natural drainages that break the otherwise rigid township and range system. This 2019 data reveals a landscape of massive circular irrigation fields and rural section roads, illustrating the enduring scale of modern dryland and irrigated farming at the state border.
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This is the sole edition of this map. No revisions or reprints were ever made.
1954 · Sterling
USGS Topo · 1:250,000
1954 · McCook
USGS Topo · 1:250,000
1957 · McCook
USGS Topo · 1:250,000
1958 · McCook
USGS Topo · 1:250,000
1958 · Sterling
USGS Topo · 1:250,000
1961 · Lamar
USGS Topo · 1:24,000
1961 · Lamar NW
USGS Topo · 1:24,000
1961 · Brandon
USGS Topo · 1:24,000
1962 · Venango SW
USGS Topo · 1:24,000
1962 · Amherst
USGS Topo · 1:24,000