Map of Horn Trail, Franklin County, Pennsylvania LOCATION Latitude: 39.99333 Longitude: -77.81833 Current weather conditions and forecast for Horn Trail, Franklin County, Pennsylvania Local climate location: ALTOONA FAA AP 27 miles away    High quality water resistant topo map of Horn Trail, Franklin County, Pennsylvania.   Pennsylvania Hiking Trails Complete list of all hiking trails in Pennsylvania sorted by county. Books about Horn Trail, Franklin County, Pennsylvania List of books available on Amazon.com about Horn Trail. Outdoors Recreation Near Chambersburg, Pennsylvania Outdoors recreation in the vicinity of Chambersburg, Pennsylvania, the metro area neareast to Horn 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.