
Emigrant Gap Ridge dominates the southern landscape of this Natrona County quadrangle, where the high desert terrain meets a complex network of irrigation and water management. The modern era of ranching and land use is defined by long-standing infrastructure like the Casper Canal and Bishop Lateral, which channel water through a region otherwise carved by seasonal drainages such as S Fork Casper Cr and Tudor Draw.
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This is the sole edition of this map. No revisions or reprints were ever made.
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