Bald Eagle Formation | |
---|---|
Stratigraphic range: Late Ordovician | |
Type | sedimentary |
Underlies | Juniata Formation |
Overlies | Reedsville Formation |
Thickness | 275 +/-25 m[1] |
Lithology | |
Primary | sandstone |
Other | conglomerate, shale |
Location | |
Region | Appalachian Mountains |
Extent | Pennsylvania, Maryland, West Virginia |
Type section | |
Named for | Bald Eagle Mountain, Pennsylvania |
Named by | A. W. Grabau[2] |
The Ordovician Bald Eagle Formation is a mapped bedrock unit in central Pennsylvania, USA. It is a ridge-forming unit in the Appalachian Mountains.