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Rock Layers



Stratigraphic Column


Below are seven geologic formations (rock layers) that are found in the Lehigh Gorge. Click on either a link below or on an area in the stratigraphic column on the left to learn more about each layer. The colors on the stratigraphic column correspond to the colors on the geologic map for each formation.






Mauch Chunk
Pocono Sandstone
Spechty Kopf




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