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historical topo map of Contra Costa County, CA in 1993

1993 Map of Las Trampas Ridge

USGS Topo · Published 1997

This historical map portrays the area of Las Trampas Ridge in 1993, primarily covering Contra Costa County as well as portions of Alameda County. Featuring a scale of 1:24000, this map provides a highly detailed snapshot of the terrain, roads, buildings, counties, and historical landmarks in the Las Trampas Ridge region at the time. Published in 1997, it is the sole known edition of this map.

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Map Details

Date Portrayed1993
Date Published1997
PublisherU.S. Geological Survey
Map TypeTopographic
Scale1:24000
Physical Dimensions22 x 26.8 inches

Editions of this 1993 Las Trampas Ridge Map

This is the sole edition of this map. No revisions or reprints were ever made.

Historical Maps of Contra Costa County Through Time

30 maps found

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Source Details

SourceU.S. Geological Survey
CopyrightPublic Domain