Wissahickon Geology

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Learn through a slide presentation about the theories of what caused the rocks of the Wissahickon Gorge to be formed and why they are currently exposed at the earth’s surface. Then explore Wissahickon schist, with its intricate and beautiful patterns.  View stream characteristics such as cut banks and deposition bars, and understand how the Wissahickon Creek is still down cutting through the gorge.  Learn how movement of rock particles, through erosion processes, have shaped the landscape. Level: easy. Boots Suggested.  Ages 12+

Registration is recommended for all hikes (required if indicated) so that participants can be informed of weather or other emergency cancellations. Unless otherwise specified, Trail Ambassador Hikes may be on rocky, rugged trails that may be wet and slippery. Wear sturdy shoes or boots with socks. Long pants are recommended for protection against occasional poison ivy and possible ticks. Bring water and a snack if desired. Unless otherwise noted, children 8+ are welcome if accompanied by a responsible adult. Walks are cancelled in heavy rain or icy conditions. For cancellation information, visit our Facebook page.

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