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Western States Topographic Maps

This group of map cases house the U.S. Geological Survey 7.5 and 15-minute topographic quadrangles covering western U.S. states from the Rocky Mountains to the Hawaii. The collection is historic dating back to the late 1890's. The set also includes quadrangles published by the Corps of Engineers, the Army Map Service, and the Defense Mapping Agency.

Sheets are arranged by quadrangle name and then by date. To located the sheet you need, the first step is to consult the USGS state index map and determine the quadrangle name for your area of interest.

Sample Index Map

15-minutes of longitude

7.5-minutes of longitude

Scale 1:62,500

Scale 1:24,000

15-minute quadrangles were published from 1895 to the 1960's
7.5-minute quadrangles replaced the 15-minute maps around 1950-

More information is available on Topographic Maps

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Last updated 12/15/2003.