Don from Ellisville, MO on 8/1/2014 10:11:32 AM:
I agree with MidSouth. Unless you are planning on eventually riding the entire Katy (even a section at a time), you should start in St. Charles. There is nothing between Machens and St. Charles -- yes, a few beautiful views -- but no facilities to speak of. If you start in St. Charles, ride to Augusta for lunch and ride back to St. Charles, that would be about 55 miles roundtrip. Makes a nice day with no car logistics to deal with.