Trail Running calendar near Bertram 2025-2026

The Backbone Trail Run is an exciting running event held in Dundee, Iowa, celebrating the natural beauty of Backbone State Park. Participants can choose between two race categories: a 4.3-mile moderate trail run and a more challenging 10K lake loop. The event promises a scenic and challenging course..

The Mines of Spain 100 is an ultra-marathon event featuring both 100-mile and 100-kilometer races, set in the picturesque bluffs, prairies, and forests of eastern Iowa's Driftless region. The race course, approximately 20 miles long, offers a diverse range of terrains, including steep technical sing..

Meyerhoff's Mayhem is an endurance running event held at Big Woods Campground in Cedar Falls, Iowa. Participants can choose to run individually or as part of a team relay, completing 4 miles every 4 hours for a total of 48 hours, with an optional 2-mile add-on. The event features a variety of terrai..

The Geode Challenge Races, initiated in 2018, is a fundraising event held at Geode State Park, aimed at supporting the renovation of the park's beach house and other projects. Participants can choose from a 5k out-and-back, a 12k single loop, or a 25k option consisting of two loops. The event is dog..

The Miner 49er is an endurance running event taking place in the scenic Mines of Spain, Dubuque, IA. Participants can choose between a 50K and a 25K race, both featuring challenging terrain with single track, double track, and prairie trails. Runners will enjoy stunning views of the Julien Dubuque M..

Woodpecker Six is a six-hour endurance running event organized by LoKeyz Trail Runners, taking place in the scenic Linn County Pinicon Ridge Park. Participants will navigate a 1.2-mile trail loop featuring challenging climbs and woodland paths, with the course direction changing every two hours to e..

The Critter is a running event taking place in Waverly, IA, featuring three race durations: 4 hours, 8 hours, and 12 hours. This event invites participants of all levels to challenge themselves and enjoy a day of athleticism and community. Registration for the 12-hour and 8-hour races opens on April..