Rib Mountain Adventure Challenge - Winter Edition
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Rib Mountain Adventure Challenge - Winter Edition
The Rib Mountain Adventure Challenge - Winter Edition is a map and compass adventure race near Merrill, WI on December 5, 2026. Events are offered as timed individual or team formats, with solo competitors and teams of two to four; team members must stay together for the duration.
The race combines multiple disciplines including trekking and running, orienteering, biking, and optional snowshoeing. Routes include navigation features, route choice, and special challenges that vary by course.
Distances and format options:
- 3-hour LITE: Trek ~7k, Bike ~15k, GPS allowed
- 6-hour: Trek ~13k, Bike ~28k, GPS not allowed
- 3-hour No bike: Trek ~11k, GPS not allowed
Biking portions are mainly on plowed paved and gravel surfaces; fat tire bikes are permitted but not required. Depending on snow conditions, the 6-hour course may include optional checkpoints on less often plowed gravel roads. Snowshoes are optional and may be rented during registration. A 3-hour beginner clinic will be offered for new adventure racers.
Included with entry are pre-plotted maps, facility and land use fees, a swag item, mid-race hot beverages and food for most courses, a post-race meal, and a custom finisher award. The event is USARA sanctioned; only 6-hour racers are included in USARA and Wisconsin Adventure Racing Series rankings. Refunds are not offered, though race credit less $20 may be available up to one week prior. Visit the organization's website for the most recent information.
