Just wanted to recommend a great little trail in north-central PA called the Susquehannock Trail. It's located in Potter County and is a well graded, beautiful 85 mile loop trail through some decent wilderness.
I have hiked it twice, and on my first hike I saw more bear (3) than people (2) over five days. Best of all...almost exactly halfway through you literally walk past a Post Office in Cross Fork, PA. There is also a small pub, restaurant and very cheap motel there.
It's a great hike for people with some limited time.