
The Iron Mountains dominate this landscape in the early 1980s, marking a rugged division between the Ward Valley and Cadiz Valley. This industrial desert corridor is defined by massive infrastructure projects, most notably the Colorado River Aqueduct which cuts across the southern portion of the quadrangle. The aqueduct's path is facilitated by the Iron Mountain Tunnel, a significant engineering feat required to traverse the mountain range.
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2 editions found
1942 · Amboy
USGS Topo · 1:250,000
1943 · Amboy
USGS Topo · 1:250,000
1943 · Cadiz Lake
USGS Topo · 1:62,500
1943 · Cadiz Valley
USGS Topo · 1:62,500
1943 · Iron Mountains
USGS Topo · 1:62,500
1954 · Needles
USGS Topo · 1:250,000
1956 · Needles
USGS Topo · 1:250,000
1956 · Milligan
USGS Topo · 1:62,500
1956 · Iron Mountains
USGS Topo · 1:62,500
1956 · Cadiz Lake
USGS Topo · 1:62,500