Big Wall Oil Field dominates the northeastern corner of this Central Montana landscape, marking a significant site of petroleum extraction within Musselshell County. The industrial presence is centered near the small settlement of Big Wall, which sits just south of the primary drilling activity. The terrain is characterized by the seasonal drainages of N Willow Cr, which thread through the dry coulees and high plains typical of the region.
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This is the sole edition of this map. No revisions or reprints were ever made.
1954 · Roundup
USGS Topo · 1:250,000
1958 · Roundup
USGS Topo · 1:250,000
1979 · Roundup
USGS Topo · 1:100,000
1979 · Gage NE
USGS Topo · 1:24,000
1979 · Gage
USGS Topo · 1:24,000
1979 · Roundup
USGS Topo · 1:24,000
1986 · Lake Mason SE
USGS Topo · 1:24,000
1986 · Lake Mason NE
USGS Topo · 1:24,000
1986 · Big Wall West
USGS Topo · 1:24,000
1986 · Big Wall NW
USGS Topo · 1:24,000