May 20, 9:00 a.m. to ? – Natural History Hike (with Allentown Hiking Club) Little Gap to Lehigh Gap. Enjoy at 5-6 mile hike with a difficult descent into Lehigh Gap from the east. Wear sturdy hiking shoes for the rocky trail, and bring water and lunch. Meet at the Osprey House, and carpool to the starting point.
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May 20, 2017 @ 9:00 am