MAH from Blue Springs, MO on 11/14/2006 11:36:14 AM:
The Katy is flat from Boonville all the way to St. Charles. The western end from Clinton to Boonville has some low grades, but they last for a couple of miles so to me, 53 not that it matters :), they're a bit more of a workout.
Welcome to riding the Katy...be careful though, you'll become addicted to it! It's my absolute favorite place to ride. Been riding it for 3 years and have done end to end twice and many one and two day rides. As frank stated, watch the road crossing on that end and have fun!