Gifford Pinchot State Park is a full service park with with the 340-acre Pinchot Lake as the main feature. There are 18 hiking trails with red blazes to help guide you along the way. The longest trail is the Mason-Dixon Trail which is 200 miles and runs through multiple states. The shortest is the Oak Trail at 0.4 miles.
Gifford Pinchot State Park is reached from Harrisburg via the Lewisberry Exit (35) of I-83 south, then PA 177 south; or by US 15 south to Dillsburg, then to PA 74 south. From York, take PA 74 north or I-83 north. From I-83, take the Newberrytown Exit (32), PA 382 west to PA 177 south.
http://www.tripleblaze.com/trail.php?c=3&i=5285