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

Crater Trail Run — 25K

25K·207 ft gain·Decorah, Iowa
mountaintechnicaltrailloop

AI-generated image

Distance25K
Gain207 ft
DateJun 6, 2026
Difficulty2/5

About This Race

The 25K option delivers a substantial trail workout across 15.5 miles of Bear Brook's diverse ecosystem, incorporating the same 614 feet of climbing as longer distances but in a more concentrated format. Runners encounter the park's signature mix of pine groves and hardwood sections while navigating moderate technical features that keep the pace honest. This distance suits those seeking a challenging morning on trails without the ultra commitment.

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 207 ft over 16 miles, with the steepest section between mile 20–mile 20.

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.

5K

633 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.

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.