Map of Grandad Trail, Lycoming County, Pennsylvania LOCATION Latitude: 41.34778 Longitude: -76.75833 Current weather conditions and forecast for Grandad Trail, Lycoming County, Pennsylvania Local climate location: WILLIAMSPORT WSO AP 17 miles away    High quality water resistant topo map of Grandad Trail, Lycoming County, Pennsylvania.   Pennsylvania Hiking Trails Complete list of all hiking trails in Pennsylvania sorted by county. Books about Grandad Trail, Lycoming County, Pennsylvania List of books available on Amazon.com about Grandad Trail. Outdoors Recreation Near Williamsport, Pennsylvania Outdoors recreation in the vicinity of Williamsport, Pennsylvania, the metro area neareast to Grandad Trail. Find info on campgrounds, marinas, hiking trails, ski resorts, lakes, beaches, parks, whitewater, golf courses and more. Pennsylvania Outdoors Index Index of outdoors activities in the great state of Pennsylvania.