M-94, Munising MI
Saturday, June 7th, 2025
The Rock River Canyon 50K is a magnificent route through the high country and remote river valleys south of Munising. The course begins at the Valley Spur Lodge south of Munising and follows a rarely followed section of the North Country Trail to AuTrain and then on to the Rock River Canyon Wilderness. Runners then turn back for an eastward retrace back to Valley Spur. Single track comprises 26 miles of the route while dirt forest road makes up the remaining 5. Runners who want to immerse themselves in the wild backcountry of Michiganโs Upper Peninsula on Zen quality single track have now found their experience. With 4390 ft of elevation change over 31 miles runners will enjoy moderately rolling terrain. I would describe it as highly runnable and even a fast course for the experienced ultra runner. It's non-technical terrain makes it an ideal step up for the marathoner wishing to try their first ultra. The 27K route takes runners from Valley Spur to AuTrain and back and features some of the area's most scenic terrain.
For additional details and registration, visit the race webpage.
Starting Line Map
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