
The eastern ridges of the Diablo Range define this 1939 landscape, where remote ranching outposts and mineral springs provided the primary human footprint. Central to the era is Gilroy Hot Springs, a notable resort destination reached via winding canyon roads. The map captures a transition in topography from the high summits like Mustang Peak and Pacheco Peak down into the productive alluvial reaches of the Santa Clara Valley and Llano del Tequisquita.
50 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
1915 · San Juan Bautista
USGS Topo · 1:48,000
1917 · Morgan Hill
USGS Topo · 1:62,500
1917 · San Juan Bautista
USGS Topo · 1:62,500
1919 · Orestimba
USGS Topo · 1:62,500
1919 · Orestimba Creek
USGS Topo · 1:31,680
1919 · Hollister
USGS Topo · 1:48,000
1920 · Pacheco Pass
USGS Topo · 1:62,500
1921 · Gilroy Hot Springs
USGS Topo · 1:62,500
1921 · Hollister
USGS Topo · 1:62,500