Boone Gran Fondo, CO, August 4th - Register Now!

Colesburg Back 40

September 01 2024
Colesburg IA
Date Confirmed
Add to My Favourites
Distances: 25, 40, 60, 100, 200 miles
Difficulty: Ultra Distance and Climbing for events well over 100 miles
Limited to: 1000 Participants

The Colesburg Back 40 is the oldest ongoing gravel race in the Midwest. 2024 will be 31 years. The race takes place in Iowa's driftless region and has views that'll take your breath away.  

5 different routes are available this year.  25-45-60-Iowa’s Hardest 100-Iowa’s Hardest 200.  Yes all routes include level B & C roads.  Remember, the Level C roads are private property and are NOT allowed to be ridden , except for race day.

Count on roughly 1,000 ft of climb per 10 miles but you won't notice that, you'll be so busy enjoying the landscaping.

Because of the history of this race and close ties to the Chequomegan 40, we have our own Pirate Hill  

What you get:  Aid stations,  marked routes, awards ceremony, 3 podium spots for each category, hand crafted awards, Iowa’s largest prize table, food from our local 4H group, music, and to hang out with your favorite race director! 

What we get:  to do all the work, enjoy your presence and smiles, and to donate all the proceeds back to the community. 

And lastly: Bring your legs!!

Colesburg Back 40

Start Located At: 100-112 Parkview Ct, Colesburg, IA 52035, USA
Add to My Rides
Alert Us
Registration Fees

$50 per person

Packet Pickups

The night before and the day off. 

Changing Rooms
Registration On the Day
Pre-Packet Pickups
Support for Participants
Route Signposted
Route Card
First Aid
Emergency Contact No
SAG Wagon
Escort / Police Escort
Roving Mechanical Support
Mechanical Support at Rest Stops
After Party
Kids Fondo
Course Timing
Category / Race Prizes
Finishing Medals
Results Within 24 Hours
Personalised Bib (Name and QR Code)
Downloadable GPS files
Post Ride Shower
Finish Line Chute
Feed / Aid Stations
Pre Event Meal(s) Provided As Part of Entry
Post Event Meal(s) Provided As Part of Entry
Sep 01 2024 - EVENT: Colesburg Back 40