Possibly the Most Difficult 50K in Oregon
Overview
A demanding 50K through Oregon's old-growth forest with over 8,000 feet of climbing across three summits — Horsepasture Mountain, Macduff Mountain, and Kings Castle — before a long, fast descent back to the finish at the Upper McKenzie Community Center.
Course
Runners shuttle roughly 15-18 minutes from the community center to the Olallie North trailhead for the start. The course opens with a demanding 6-mile, 3,400-foot climb to the Horsepasture Mountain summit (5,675 ft), continues along the ridge past a second summit at Macduff Mountain (5,060 ft), then descends through switchbacks and technical singletrack to the O'Leary/Castle Rock trailhead at mile 18. From there it's a 6-mile out-and-back down through a creek drainage to the East Fork turnaround before returning to O'Leary. A final climb leads to the Kings Castle summit for one more set of views, followed by a fast, flowing 6-mile, roughly 2,700-foot descent back to the community center finish.
Aid Stations
7 aid stations across the loop: Horsepasture Mountain trailhead (twice, roughly mile 4.6 and mile 7.1), Forest Rd 411 (mile 14.3), O'Leary/Castle Rock trailhead (mile 17.3, cutoff 2:00 PM), East Fork trailhead (mile 19.8), O'Leary/Castle Rock again (mile 22.3, cutoff 3:30 PM), and Rd 480/Kings Castle (mile 28.5) before the finish.
Logistics
Schedule
Shuttle from the community center to the Olallie North trailhead start; first shuttle around 5:45 AM, second around 6:25 AM.
Bib Pickup
Pre-race pickup Wednesday, October 7, 4:00-7:00 PM at Salvation Nutrition (2001 Franklin Blvd, Suite 5, Eugene, OR). Race-day pickup and check-in at the Upper McKenzie Community Center, 5:00-6:20 AM.
Drop Bags
One drop bag allowed, staged at the community center before shuttles depart; delivered to the O'Leary/Castle Rock aid station (miles 18.3 and 24).
Swag & Medals
Race swag (tees, zip-up hoodies, trucker hats) provided by Territory Run Co, available as an add-on during registration.
Getting There
Driving Directions
Upper McKenzie Community Center, 54745 McKenzie River Dr, Blue River, OR 97413.
Requirements
2600
Policies
Race Policies
Charity & Beneficiary
A portion of proceeds benefits Bridgeway House, a Lane County school and service provider for children with autism spectrum disorder and their families.
About Rainbow Ridge
Race produced by Rainbow Ridge.
View all Rainbow Ridge races on Kåduka →
Disclaimer
We make every effort to provide accurate and up-to-date information on Kåduka, but details may change. Please always confirm the latest information on the official race website. See something that needs correcting? Send us a note at [email protected]