Local training routes:

The Blue Ridge Bicycle Club Tuesday Night Ride - The BRBCVA leaves the Transportation museum at 5:30 and does this 20 mile (1611ft) ride up Mill Mountain and down the parkway and meets for a drinks at Cornerstone Grill.  https://ridewithgps.com/routes/209573

The Blue Ridge Bicycle Club Thursday Night Ride - The BRBCVA leaves Patrick Henry High School and does this 25 mile (1339ft) ride/route Thursday nights at 5:30.  https://ridewithgps.com/routes/11005517

Parking at Greenfield Elementary and head towards Fincastle then take Springwood Road to Buchanan.  Depending on your legs you can head up Rt 43 to the parkway or return via Route 11, Lithia, and Nace road.  Many options on adding or cutting out a few miles along this route.  https://ridewithgps.com/routes/20580349