Interpreting geologic maps for engineering purposes Hollidaysburg quadrangle, Pennsylvania / [cartographic material]

Author:: Geological Survey (U.S.)
Publisher:: The Survey
Subject:: Geology
Spatial Coverage:: Pennsylvania, Blair County, Hallidaysburg Region, Blair County (Pa.), Hollidaysburg Region (Pa.), and Blair County.
Language:: English
Format:: cartographic image
Year:: 1953
Date Issued:: 2018-04-23T17:50:05Z
Date Modified:: 2018-09-05T19:39:29Z
Library Catalog Record:: https://search.library.yale.edu/catalog/13577619
Digital Collections Record:: No Digital Collections record

Interpreting geologic maps for engineering purposes Hollidaysburg quadrangle, Pennsylvania / [cartographic material] Yale Public content