This isn't so much a specific road but an area. I was coming back from south Jersey a few weeks ago (leaves just starting to turn), heading towards NE Ohio. Sometimes I take I80, sometimes the Pennsy Turnpike (I76). This time I took the pike as far as Harrisburg, but then got off and took back roads.
Went through Wertzville, PA (Mapquest it), then headed west on 944, then went NW on 850. Eventually (at Alinda), got on 74, then 75, again (generally) heading north and west (but occasionally not). Somewhere along the way I got totally lost, consulting with the GPS and Pennsy map, eventually getting onto I80 to continue the trip home.
BEAUTIFUL, pastoral farmland mixed with gorgeous woodsy areas, nice curvy country roads that had, almost without exception, what looked like nearly new asphalt. If you're trying to get from the Harrisburg area up towards State College, there are some beautiful back roads. I don't even think you need to take the specific routes I mentioned...I'm betting it's pretty much all scenic.
