The wife and I biked 15 miles North from Great Falls, which made the whole ride 30 miles. Pretty flat trail which didn't provide any time to coast. This intensified the workout because we were initially only going to ride 10 miles North, but because it was so flat we pushed it an additional 5 miles. The scenery was nice; trees, river, creek. Your typical hiking environment. But, I would prefer more visual stimulation. We'll try the section starting from Cumberland next time.