Map of the Mercer clay and adjacent units in Clearfield, Centre, and Clinton Counties, Pennsylvania
- Author(s):
- Pennsylvania. Bureau of Topographic and Geologic Survey.
- Publisher:
- Commonwealth of Pennsylvania, Dept. of Internal Affairs, Topographic and Geologic Survey,
- Place(s):
- Centre County, Pennsylvania, Clinton County, and Clearfield County
- Subject(s):
- Geology
- Year:
- 1964
- Held by:
- MIT
- More details at
- https://mit.primo.exlibrisgroup.com/discovery/fulldisplay?vid=01MIT_INST:MIT&docid=alma990017299860106761