I just got back from my bike ride on the Houtzdale Rail Trail. I'm an avid rider of rails-to-trails in central PA and I love trying new trails. This is the first time I've ridden the Houtzdale trail. I had done a little research, so I planned on parking at the Smoke Run parking lot and ride in to Houtzdale. But I couldn't find an address (all I could find was Route 2005 in Smoke Run, but my gps couldn't even find Smoke Run!), but I sorta knew the way to Houtzdale so I thought maybe I'd see it. Nope - so I ended up going on in to Houtzdale and parking at the supermarket (Shop N Save) on Route 53. Even here, the trailhead isn't marked, you have to bike down the next turn on the same side as the store and the trailhead is right before the bridge. Here you can go north on the "undeveloped" trail or south down through town and on to Ramey/Smoke Run. I decided to check out the undeveloped section. I made my way (on my mountain bike with fairly knobby tires), but the ride got too rough for me, so I parked my bike and walked a little ways. It was easy, level walking then. The section through Houtzdale is a nice surface, and there were pretty many road crossings, and then from here to Ramey, you're pretty much in people's backyards, with no fences or anything. And the surface was grassy in a lot of places. From Ramey to Smoke Run is nice through the woods. I don't know if my legs were just tired, but I thought the ride back up from Smoke Run to Ramey was noticeably harder. After Ramey, the trail seemed to level out the rest of the way back. One other thing to mention is that, while maybe half of the trail was in the woods, there weren't too many areas of shade for me on this hot, sunny, summer day. Overall, though, I enjoyed this trail - it's a little more challenging than your typical rail-trail - but I would definitely recommend it.