Isabel Valley and its namesake Isabel Cr dominate this mid-2010s landscape in the Diablo Range of Santa Clara County. The terrain is defined by high ridges and deep canyons, with elevations climbing to peaks such as Mt Isabel and Mt Helen. The drainage network is complex, featuring Arroyo Bayo to the north and the Middle Fork Coyote Cr to the south. Historically significant landmarks include Indian Springs and the expansive Blue Ridge.
40 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
1917 · Morgan Hill
USGS Topo · 1:62,500
1921 · Gilroy Hot Springs
USGS Topo · 1:62,500
1938 · Mt. Boardman
USGS Topo · 1:62,500
1939 · Morgan Hill
USGS Topo · 1:62,500
1939 · Gilroy Hot Springs
USGS Topo · 1:62,500
1940 · Gilroy Hot Springs
USGS Topo · 1:62,500
1941 · Morgan Hill
USGS Topo · 1:62,500
1942 · Mt. Hamilton
USGS Topo · 1:62,500
1942 · Mt. Boardman
USGS Topo · 1:62,500