I just rode the GAP and 1/2 of the C&O this week. Peak fall colors on the GAP trail and the C&O was almost there. I got a one way car rental from Baltimore to Pittsburgh. Left Pittsburgh on Tuesday around 2pm. I made it past Williamsport, unfortunately the nights were very cold especially on the western side of the Allegheny Plateau. Damp 35F/2C each night. I had my summer bag and I was chilly in the bag. It is hard enough sleeping near the trains but cold feet made it worse. I threw in the towel yesterday, day 4 as the rains fell and temps were once expected to be in the 30's. I have a head cold today so it was a good call to return. Great trip nonetheless. The colors were superb, I rode completely self contained, water and pit toilets were still available on both trails, campgrounds were in good shape. I usually ride ultra light but used panniers to accommodate food/cooking stuff and my puffy jacket. Used everything I took Here are few pixs.