Congratulations on your ride! The dust is something else isn't it. I've noticed that as the summer wears on the dust is getting thicker. I guess the rocks are really getting ground down with all the traffic. I ride the trail a couple of times a week starting at the Boat House at Creve Coeur lake, then crossing the river at the Page extension, and then up through St. Charles. That's about 30 miles. It's a really nice ride.