Emigrant Gap Ridge dominates this Natrona County landscape, serving as a prominent geographical backbone between various drainage basins and dry gulches. The terrain is defined by its water management systems, including the Casper Canal and a series of high-desert catchments such as Number 1 Reservoir and Box C Reservoir. A unique aviation landmark, the American Falconry Airport, sits in the southern portion of the quadrangle, reflecting specialized modern use of the open Wyoming plains.
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1950 · Emigrant Gap
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
1951 · Poison Spider
USGS Topo · 1:24,000
1951 · Reid Canyon
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