
The Navajo Indian Reservation south of the San Juan River underwent significant industrial transformation during the mid-20th century, as documented in this survey. The landscape is dominated by the sprawling Navajo Mine, a massive open-pit operation feeding the nearby Four Corners Powerplant. This industrial complex is supported by substantial infrastructure, including a series of large Stacks, a Substa, and a dedicated Landing Strip situated near the shores of Morgan Lake.
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1889 · Chaco
USGS Topo · 1:250,000
1892 · Chaco
USGS Topo · 1:250,000
1927 · Sulphur Spring
USGS Topo · 1:96,000
1928 · Kirtland
USGS Topo · 1:125,000
1932 · Kirtland
USGS Topo · 1:125,000
1934 · Chimney Rock
USGS Topo · 1:62,500
1936 · Chimney Rock
USGS Topo · 1:62,500
1954 · Shiprock
USGS Topo · 1:250,000
1958 · Shiprock
USGS Topo · 1:250,000
1959 · Shiprock
USGS Topo · 1:250,000