September 6, 2026
Colesburg Back 40
Colesburg, IA, USA · Colesburg Back 40
Routes
20 mi
20 mi · $50 entry
40 mi
40 mi · $70 entry
Lodging
Accommodation search powered by Stay22. We may earn a commission on bookings made through this map, at no extra cost to you.
Event details are provided by the organizer. Gravel Calendar LLC is not responsible for their accuracy. Please participate at your own risk.
Registration
- Opens
- February 17, 2026
- Deadline
- September 4, 2026
Event organizer
Colesburg Back 40 is the oldest ongoing gravel race in the Midwest. 30 years this year!!!! The race that made gravel racing cool.
https://www.facebook.com/Colesburggravelpocalypse?mibextid=LQQJ4dKeep looking
Browse the whole calendar →Upcoming events, closest first.
- OCT31
Turkey Burner
New Liberty, IA · Big River Gravel
5 km · 33 mi · 63 mi
- OCT10
Red Granite Grinder
Athens, WI · IRONBULL
- MAY82027
Hungry Bear Gravel
Cable, WI · Chequamegon Area Mountain Bike Association (CAMBA)
28 / 60 / 100 mi
- JUN52027
Gordon Pine Barrens 50
Gordon, WI · Gordon Pine Barrens
25 / 50 mi
- OCT31
Yellow Chip Road 2026
Kansas, IL · Wild Card Cycling
33 / 46 / 72 / 104 mi
- NOV7
The Route 66 Oreo Roubaix Gravel Ride
St. Louis, MO · Big Shark Bicycle Company
17 / 35 / 45 mi