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Great Lakes Endurance

Trail Runs Across the Great Lakes

Great Lakes Endurance has been producing premier trail running events across Michigan and Wisconsin since 2000, starting with the Keweenaw Trail Running Festival. Over the years the series has grown to include stunning courses like Grand Island, Tahqua, Two Hearted, Waugoshance, Rock River Canyon, and the Madeline Island Marathon, each showcasing the beauty of the Great Lakes region. Participants are drawn to the combination of scenic wilderness settings, well-organized races, and a welcoming community that celebrates the challenge and camaraderie of trail running.

While known for its breathtaking courses and memorable race experiences, Great Lakes Endurance was also an early innovator in mindful race practices. From the beginning, the organization built its events around respect for the lands they traverse, pioneering low-waste races, sourcing local food, and partnering with area schools and conservation groups. These efforts earned recognition from publications like Runner’s World and Trail Runner Magazine, and remain part of the organization’s DNA today. The focus, however, has always been on delivering exceptional trail races that inspire runners and connect them deeply to the landscapes and communities of the Great Lakes.

Here are some ways to get involved with the Great Lakes Endurance Community:

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Event Portfolio

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May 22, 2027
Marathon | Half Marathon
La Pointe, WI

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June 12, 2027
50K | Marathon | Half Marathon
Paradise, MI

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June 26, 2027
50K | 27K
Munising, MI

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July 10, 2027
50K | Marathon | Half Marathon
Emmet County, MI

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July 31, 2027
50K | Marathon | Half Marathon
Munising, MI

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August 14, 2027
50K | 25K | 10K
Paradise, MI

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Meet the Founder

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Great Lakes Endurance Founder

Jeff Crumbaugh is the founder and former race director of Great Lakes Endurance, organizing trail and endurance running events based in Wisconsin and Michigan. Since launching the series in 2000 with the Keweenaw Trail Running Festival, he has been at the forefront of creating challenging and scenic trail races throughout the upper Midwest.

Under his leadership, Great Lakes Endurance became known for its emphasis on high-quality race experiences and its pioneering approach to environmentally responsible event production. Jeff’s vision and dedication built a respected brand in the trail running community, which is now entering a new chapter under Aravaipa Running starting with the 2026 season.

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