Rock River Canyon 50k Trail Run

Munising, United States • 6 Jun 2026

Event overview

Rock River Canyon is a trail running event south of Munising, Michigan, offered in two distances:

  • 50K (about 31 miles)
  • 27K (listed at about 16.5 miles)

The event is organized by Great Lakes Endurance and, for the 2026 season, by Aravaipa Running. Participant limit is 100 runners. There is an 8.5 hour time limit for the 50K. Registration closes June 1.

Course and logistics

The course is an out-and-back from Valley Spur Lodge via a section of the North Country Trail into the Rock River Canyon Wilderness. The 50K includes about 26 miles of single track and about 5 miles of dirt forest road, with roughly 4,390 ft of total ascent and descent over the route. The 27K follows the same out-and-back and turns at the AuTrain aid station; it is run entirely on single track.

There are six aid stations spaced roughly 4 to 5.4 miles apart (at about 4, 8.4, 12.8, 18.2, 22.6, and 27 miles). Runners are required to carry a 20 oz water bottle or a functional hydration system; aid stations provide water, electrolyte drink, gels, and electrolytes. Packet pickup is available at Valley Spur Lodge the day before and on race morning. Parking is available at Valley Spur and a drop bag tent is provided near the start/finish. Finishers receive a commemorative medallion; podium and age-group awards are given. Visit the organization's website for the most recent information.

Race information

50 km
50k
27 km
27k
Visit the organization's website for the most recent information.
Trail runs nearby

Rock River Canyon : Great Lakes Endurance Rock River Canyon is a trail running event held in the Munising, Michigan area and based at Valley Spur Lodge. Distances offered: 50K - out-and-back, 31+ miles 27K - out-and-back, 16.5+ miles The..

Run Grand Island's scenic trails on July 25, 2026 with 50K, marathon, and half marathon options that wind across sandy beaches, Jacobsville sandstone cliffs, and island summits. Limited to 500 runners, the race features aid stations, a fini..