Trail running course through singletrack trails in Iowa, USA
Crater Trail Run

Crater Trail Run — 5K

5K·633 ft gain·Decorah, Iowa
5k

AI-generated image

Distance5K
Gain633 ft
DateJun 6, 2026
Difficulty2/5

About This Race

The 5K route condenses Bear Brook's trail experience into a spirited 3.1-mile journey, maintaining the event's 614 feet of elevation gain in its most concentrated form. Quick climbs through mixed forest give way to flowing descents that reward efficient trail technique over raw endurance. This distance serves runners looking for a brief but authentic taste of New Hampshire trail running or those using it as a shakeout before longer races.

The course utilizes the groomed single-track mountain bike trails of Van Peenen Memorial Park, part of Decorah's extensive trail system. Runners navigate technical terrain through Iowa's distinctive bluff country, with the 50K consisting of multiple loops that showcase different sections of the trail network. Key landmarks include the Death Valley aid station, which 50K runners encounter four times, and the entrance to Palisades Park, serving as a major checkpoint for longer distances.

Elevation Profile

Elevation profile estimated from terrain data. Actual course may differ.

The course gains 633 ft over 3 miles, with the steepest section between mile 3–mile 3.

Location

Practical Info

Weather

Early June conditions in Northeast Iowa typically feature mild to warm temperatures with potential for variable spring weather.

Nearest Airport

DBQ - Dubuque Regional Airport

Accommodation

Decorah offers local lodging options, with the race located in one of the area's 13 parks that support the community's outdoor recreation focus.

Best For

Trail runners seeking technical terrainMountain bike trail runnersMidwest trail runners

Notable Features

The race showcases Iowa's unique bluff country terrain on trails that have gained regional recognition for their quality and technical challenge. The multi-loop format allows runners to experience different trail sections while providing excellent spectator and crew access. The community focus, with proceeds supporting local outdoor organizations, reflects the area's strong commitment to trail sports and outdoor recreation.

Other Distances at This Event

Kids Mile

233 ft gain

The course utilizes the groomed single-track mountain bike trails of Van Peenen Memorial Park, part of Decorah's extensive trail system. Runners navigate technical terrain through Iowa's distinctive bluff country, with the 50K consisting of multiple loops that showcase different sections of the trail network. Key landmarks include the Death Valley aid station, which 50K runners encounter four times, and the entrance to Palisades Park, serving as a major checkpoint for longer distances.

10K

135 ft gain

The course utilizes the groomed single-track mountain bike trails of Van Peenen Memorial Park, part of Decorah's extensive trail system. Runners navigate technical terrain through Iowa's distinctive bluff country, with the 50K consisting of multiple loops that showcase different sections of the trail network. Key landmarks include the Death Valley aid station, which 50K runners encounter four times, and the entrance to Palisades Park, serving as a major checkpoint for longer distances.

25K

207 ft gain

The course utilizes the groomed single-track mountain bike trails of Van Peenen Memorial Park, part of Decorah's extensive trail system. Runners navigate technical terrain through Iowa's distinctive bluff country, with the 50K consisting of multiple loops that showcase different sections of the trail network. Key landmarks include the Death Valley aid station, which 50K runners encounter four times, and the entrance to Palisades Park, serving as a major checkpoint for longer distances.

50K

522 ft gain

The course utilizes the groomed single-track mountain bike trails of Van Peenen Memorial Park, part of Decorah's extensive trail system. Runners navigate technical terrain through Iowa's distinctive bluff country, with the 50K consisting of multiple loops that showcase different sections of the trail network. Key landmarks include the Death Valley aid station, which 50K runners encounter four times, and the entrance to Palisades Park, serving as a major checkpoint for longer distances.