Lock Haven Formation
| Lock Haven Formation | |
|---|---|
| Stratigraphic range: Devonian | |
Brachiopod casts in the Lock Haven, Leberfinger Quarry, Sullivan County, PA | |
| Type | sedimentary |
| Unit of | Susquehanna Group |
| Sub-units | lower shaly member, upper sandy member, Minnehaha Springs Member |
| Underlies | Catskill Formation |
| Overlies | Brallier Formation |
| Lithology | |
| Primary | siltstone, shale, sandstone |
| Other | conglomerate |
| Location | |
| Region | Appalachian Mountains |
| Country | United States |
| Extent | Pennsylvania |
| Type section | |
| Named for | Lock Haven, Pennsylvania |
| Named by | Faill and Wells, 1977 |
The Lock Haven Formation is a Devonian mapped bedrock unit in Pennsylvania, in the Appalachian Mountains of the United States.