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1955 Map of Mt. Day, 1963 Print
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1955 Map of Mt. Day

USGS Topo · Published 1963

About this map

Mt Day and Mt Lewis anchor this 1955 survey of the Diablan heights along the Alameda Co and Santa Clara Co border. The landscape is defined by a series of steep, parallel ridges including Oak Ridge, Poverty Ridge, and Beartrap Ridge, cut by the deep drainage of Arroyo Hondo. This mid-century study captures a transitional interior wilderness where seasonal encampments like Old Camp and New Camp were still named landmarks and water management was becoming more formal, evidenced by the Upper Cherry Flat Reservoir and the eastern edge of Calaveras Reservoir. A network of Jeep Trails provides the primary access through the canyon systems of Isabel Creek and Alameda Creek, tracing routes into high flats like Van Horn Flats.

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Map Details

Date Portrayed1955
Date Published1963
PublisherU.S. Geological Survey
Map TypeTopographic
Scale1:24,000
Physical Dimensions22 x 26.9 inches

Editions of this 1955 Mt. Day Map

Historical Maps of San Jose Through Time

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Source Details

SourceU.S. Geological Survey
CopyrightPublic Domain