
The high Sierra crest at the intersection of Inyo and Fresno counties appears here just as high-altitude recreation and mining were beginning to overlap in the mid-20th century. The Eastern Sierra slope is marked by early industrial activity, including the Cardinal Mine and the Salty Peterson Mine, alongside early campsites like Parcher Camp. Water management is evident through the North Fork Bishop Creek and reservoirs such as Lake Sabrina and North Lake, which serve as gateways to the high country. West of the divide, the landscape opens into the expansive Humphreys Basin and the iconic Evolution Valley. This map captures the established route of the John Muir Trail through McClure Meadow and over the rugged passes, documenting the terrain before later wilderness designations further restricted development in these granite reaches.
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3 editions found
1903 · Tehipite
USGS Topo · 1:125,000
1905 · Tehipite
USGS Topo · 1:125,000
1907 · Mt. Whitney
USGS Topo · 1:125,000
1912 · Mt. Goddard
USGS Topo · 1:125,000
1913 · Bishop
USGS Topo · 1:125,000
1919 · Mt. Whitney
USGS Topo · 1:125,000
1937 · Mt. Whitney
USGS Topo · 1:125,000
1947 · Mariposa
USGS Topo · 1:250,000
1948 · Fresno
USGS Topo · 1:250,000
1948 · Mariposa
USGS Topo · 1:250,000