To get a sense of what it's really like to ride along the C&O part of the Great Allegheny Passage trip, check out these videos from David Tucker. You will see other cyclists, beatuiful scenery, you will hear the train blasting by and pedestrians greeting the cyclists along the trail.
CLIP 1: Train whistles, camping sites, SST ("Sweet smelling toilets") and pumps with iodine water (video by David Tucker)
CLIP 2: Pedestrians, puddles and chirping birds (video by David Tucker)
CLIP 3: The Point Made! cyclists on the road... pedaling away (video by David Tucker)