Geologic map of the Monongahela quadrangle, southwestern Pennsylvania [cartographic material]

Author:: Roen, John B.
Publisher:: U.S. Geological Survey
Subject:: Geology
Spatial Coverage:: Pennsylvania, Washington County, Alleghany County, and Westmoreland County
Language:: English
Year:: 1968
Date Issued:: 2012-02-16T21:00:50Z
Date Modified:: 2012-03-05T17:41:25Z
Library Catalog Record:: https://search.library.yale.edu/catalog/10219528
Digital Collections Record:: No Digital Collections record

Geologic map of the Monongahela quadrangle, southwestern Pennsylvania [cartographic material] Yale Public content