Pam examining thick moss growth on the sedimentary rock of Treman gorge. These layers of shale, sandstone, siltstone formed at the bottom of a broad, shallow sea over 380 million years ago.
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Towards the bottom of the 223 Cliff Stair steps moss takes over the Devonian shale of the cliff wall surface. Here, the cliff shelters the wall from sunlight 365 days a year.
Robert H. Treman New York State Park.