
The high desert mining landscape of the Cortez Mountains dominates this 1938 survey, illustrating the proximity of industrial operations to isolated ranching life. Centered around the prominent Mt Tenabo, the map documents several active extraction sites including the Cortez Mine, Mill Canyon Mine, and a Turquoise Mine. The rugged topography transitions sharply into the broad reaches of Crescent Valley and Grass Valley, where water sources like Wenban Spring and Dugout Spring were essential for sustaining the remote outposts of the era.
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4 editions found
1926 · Roberts Mountains
USGS Topo · 1:250,000
1929 · Roberts Mountains
USGS Topo · 1:250,000
1938 · Cortez
USGS Topo · 1:48,000
1944 · Cortez
USGS Topo · 1:62,500
1949 · Crescent Valley
USGS Topo · 1:62,500
1949 · Mt. Lewis
USGS Topo · 1:62,500
1949 · Roberts Creek Mtn
USGS Topo · 1:62,500
1950 · Mt. Lewis
USGS Topo · 1:62,500
1950 · Crescent Valley
USGS Topo · 1:62,500
1951 · Roberts Creek Mtn
USGS Topo · 1:62,500