The pass-through towns for RAGBRAI were announced today: RAGBRAI XLI Full Route
I've got each day as a route for those wanting to run pocket queries:
Day 4: Des Moines to Knoxville *Note: route in and out of DSM won't be finalized until June or July based on traffic control issues.
Plenty of time to register (April 1 deadline)
I plan to host an eventcache or two this year.