2021 Map of Mount Day
USGS Topo · Published 2021About this map
The Diablo Range dominates this portion of the interior Coast Ranges, where the boundary between Alameda and Santa Clara counties follows the high ridgelines of Beartrap Ridge and Lamb Ridge. The landscape is defined by a series of steep, parallel ridges including Oak Ridge, Valpe Ridge, and Packard Ridge, separated by deeply incised watercourses like Arroyo Hondo and Alameda Cr.
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Map Details
Editions of this 2021 Mount Day Map
This is the sole edition of this map. No revisions or reprints were ever made.
Other maps of this area
1889 · San Jose
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1897 · Mt. Hamilton
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1899 · San Jose
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1906 · Pleasanton
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1907 · Tesla
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1941 · Pleasanton
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1942 · Mt. Hamilton
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1942 · Altamont
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1943 · Pleasanton
USGS Topo · 1:62,500