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 /
| Main Author: | |
|---|---|
| Corporate Author: | |
| Format: | Government Document Map |
| Language: | English |
| Published: |
[Reston, Va.] : Denver, Colo. :
U.S. Department of the Interior, U.S. Geological Survey ; For sale by U.S. Geological Survey, Information Services,
2012
|
| Series: | Scientific investigations map ;
3172 |
| Subjects: |