The following information was provided by a fellow road adventurer:
Do you have plans to retrace the entire
expedition in conjunction with the Bicentennial 2003-2006?
Great Falls, Montana, is already gearing up. They already do an
annual festival (kinda like the one in St. Charles, with re-enactors and
such); this year it's June 22-25. (www.corpsofdiscovery.org)