IN CASE YOU HAVEN'T SEEN THIS:
https://www.chevyhhr.net/forums/general-hhr-4/hhritage-nationals-july-24-27-2008-a-11184/?quot;=

This ought to be a great time...Branson is approximately 10 hours from Chattanooga....

The ride up (or back down) US Highway 7 (adds 2 hours to the trip, but well worth it if you REALLY like curves / scenery) is worth the price of admission

 

Branson is also a 10-12 hr drive from St Paul, MN. Hope to see HHR owners from all parts of the country! Been through Chattanooga many times, never had time to stop.