Rock River Canyon

The Rock River Canyon trail race will take place on Saturday, June 6, 2026, starting at Valley Spur Lodge on M‑94 in Munising, MI. The event offers a 50 km distance and a 27 km distance. The course follows a rarely used section of the North Country Trail through high country and remote river valleys south of Munising, heading toward AuTrain and into the Rock River Canyon Wilderness before turning back eastward to Valley Spur.

All participants must follow event rules as provided by the organizer. The 50 km course features 26 miles of single track with the remainder on dirt forest roads, with frequent but not overwhelming ascents and descents. The terrain is described as highly runnable, moderate, and non‑technical, making it suitable for experienced ultra runners as well as marathoners moving up to their first ultra. The 27 km option traces the first 8.6 miles of the 50 km course to AuTrain Forest Aid before returning to the lodge.

• Both distances start and finish at Valley Spur Lodge.
• The course follows the North Country Trail through remote backcountry of Michigan’s Upper Peninsula on “Zen quality” single track.
• Great Lakes Endurance has operated trail running events in the Great Lakes Region since 2000. As of the 2026 season, events are operated by Aravaipa Running.
• No specific cut‑off times, mandatory gear lists, or refund policies are detailed in the visible text.
• Registration closes Monday, June 1, 2026 at 11:59 PM ET.

The Rock River Canyon race is designed for runners who want to immerse themselves in the wild backcountry of the Upper Peninsula. The route offers spectacular scenery through high country, remote river valleys, and the Rock River Canyon Wilderness, with an eastward retrace back to the start.

• Results from previous years (2019, 2021–2025) are available via UltraSignup.
• Contact: Aravaipa Running via UltraSignup.
• No virtual option is mentioned in the provided text.
• Participants should prepare for remote, wild terrain with limited services.

Rock River Canyon in Munising, Michigan offers a 50 km and 27 km trail race on the North Country Trail, featuring 26 miles of single track, moderate non‑technical terrain, and remote backcountry of the Upper Peninsula, operated by Aravaipa Running (formerly Great Lakes Endurance).