Geologic cross section C-C' through the Appalachian basin from Erie County, north-central Ohio, to the Valley and Ridge Province, Bedford County, south-central Pennsylvania /

Bibliographic Details
Main Author: Ryder, Robert T.
Corporate Author: Geological Survey (U.S.)
Format: Government Document Map
Language:English
Published: [Reston, Va.] : U.S. Dept. of the Interior, U.S. Geological Survey ; 2012.
Series:Scientific investigations map ; 3172.
Subjects: