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Catalog Number 1999/135/210
Collection Henley Family
Object Name Map
Scope & Content Las Trampas Ridge Quadrangle California--Sonoma Co, 7.5 Minute Series (Topographic) USGS map. Scale 1:24000.
Dates of Creation 1955
Dates of Accumulation
Title "Las Trampas RIdge Quadrangle"
Creator United States Department of the Interior Geological Survey
Date 1955
Classification Geography
Geology
Maps