
The Hetch Hetchy Aqueduct cuts across the northern landscape of this region where the San Joaquin Valley meets the rising terrain of the Diablo Range. This area is characterized by a complex network of drainage systems including Lone Tree Cr, Hospital Cr, and their various forks and gulches. The prominence of water sources in this dry environment is evident through several named points such as Elder Spring, Bluerock Spring, and the Lone Tree Mineral Spring. Elevation changes are marked by significant landmarks like Mt Oso and Cedar Knob, while the intricate topography of the ridges, including North Ridge, Pegleg Ridge, and Smiths Ridge, creates a rugged corridor of canyons and gulches like Sulphur Spring Gulch and Hellsinger Canyon.
39 named features on this map. Tap any name to fly to it.
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This is the sole edition of this map. No revisions or reprints were ever made.
1897 · Mt. Hamilton
USGS Topo · 1:62,500
1907 · Tesla
USGS Topo · 1:62,500
1913 · Romain
USGS Topo · 1:31,680
1915 · Vernalis
USGS Topo · 1:31,680
1916 · Tracy
USGS Topo · 1:31,680
1916 · Romain
USGS Topo · 1:31,680
1916 · Midway
USGS Topo · 1:31,680
1922 · Carbona
USGS Topo · 1:62,500
1938 · Mt. Boardman
USGS Topo · 1:62,500
1942 · Mt. Hamilton
USGS Topo · 1:62,500