Tuscarora Sandstone
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The Silurian Tuscarora Formation — also known as Tuscarora Sandstone or Tuscarora Quartzite — is a mapped bedrock unit in Pennsylvania, Maryland, West Virginia, and Virginia, US.
Outcrop of Tuscarora Formation in Thickhead Wild Area, Centre County, Pennsylvania
Tuscarora quartzite cliff on the west side of North Fork Mountain in West Virginia.
Conformable contact of overlying Tuscarora Formation (white rock, left) with underlying Juniata Formation (red rock, right) at the Narrows along U.S. 30 in Bedford County, Pennsylvania.
Sample of Silurian Tuscarora Formation collected from Bald Eagle Mountain, Centre County, Pennsylvania, showing Diplocraterion trace fossil at left. Specimen is ~22cm high.
Juniata Formation
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The Ordovician Juniata Formation is a mapped bedrock unit in Pennsylvania, West Virginia, Virginia, Tennessee, and Maryland. It is a relative slope-former occurring between the two prominent ridge-for
Outcrop on U.S. Route 522 at Blacklog Narrows southeast of Orbisonia, Pennsylvania.
Sample from roadcut on U.S. Route 322 near State College, Pennsylvania, showing slickensides