A cool hike that gets you into some very non-typical terrain for Pennsylvania. The AT is a great trail, as most know, and PA is some of it's rockiest terrain, but this little section involves some odd conditions. Long ago, a zinc factory in Palmerton was spewing nastiness out into the air, which basically 'burned' the vegetation and soil of the mountain, so the peak has spots where things are totally dead. Like walking through a war zone, or maybe on the moon (but with tree stumps). There are spots where things are starting to come back, and other spots where it's still really bleak, while some areas seem to have been missed by the acid, and are regular PA forest... quite a variety. Going with JTX will get you some of the history of the area, while you enjoy the different environments.
This particular hike can be done as an out-n-back from either end, or as a p-t-p if you arrange a ride or shuttle cars. Park near the entrance to Blue Mountain Ski area for this version. If you go with JTX (a guide) out of Jim Thorpe, you can arrange it however you want....
http://www.tripleblaze.com/trail.php?c=3&i=1372