444 miles. Bucket list item I've yet to do. Start up near Nashville and wind up in Natchez MS seems the logical way to go. I live next to it near the 100mi marker. I've met a lot of people doing that ride. The last three groups doing it backwards. But whatever!

6) Drivers who won't kill you. Most won't kill you. A few will annoy you and make you shout bad word and gesture obscenely at them.

https://natcheztracetravel.com/biking-the-trace.html

You can start off near Evergreen or Idaho Springs. Both easy to get to from Denver. Or go up to Echo Lake and just make it a short ride. The views and vistas are tremendous once you get over the tree line. Plan on it being self supported or have a SAG vehicle. I heard Echo Lake Lodge is now closed.

https://pjammcycling.com/climb/50.Mt-Evans
https://www.mybicycleroutes.com/xmtevansinfopage.html