Though this doesn't REALLY seem to be a request for hike ideas- I've been considering the Laurel Highlands Hiking Trail in Laurel Ridge State Park, for the next time I'm back in my home state- er, commonwealth. It's 70 miles, from Ohiopyle to one of the reservoirs north of Johnstown, along Laurel Ridge. So, it goes through some state game lands and Forbes State Forest, too, and through the Seven Springs ski area. There are shelters, though I understand that they are in poor repair, and they require reservations and a fee. (I plan on using a tarp.) Obviously, I haven't hiked it- I'm just keeping it on my list. It sounds like a great weekend, especially in autumn. But perhaps it is too far west for your needs? (I'm from near Pittsburgh.)
And the maps on this page:
look good enough to navigate with, if you print them off on your own.