One of the country’s most beautiful 100 mile races starts at Olallie Lake and runs along more than 25 mountain lakes. This race features the best trail running Oregon has to offer – technical and rocky sections, views of mountain peaks in every direction, and 60 miles of luscious sections of the Pacific Crest Trail.
The top finishers will receive prizes from our sponsors.
There are also many raffle prizes. All finishers will receive a cool buckle.
Optional shirt is available for purchase during registration. Shirts are available until August 24.
Please note that there are no transfers to other runners. If you need to cancel your registration and it’s more than 30 days prior to the race, you will receive a 50% credit toward a future Go Beyond Racing race. If your cancellation is 30 days or less from race day, there is no credit, no refund, or no transfer. See our cancellation policy for details.
The all-you-can-eat breakfast (mmm, bacon) is free for all volunteers, racers and up to three of their crew. Families and friends can purchase a meal voucher for $5 (during registration). We hope everyone stays and enjoys the fun!
The weather in the northwest in September is usually fairly stable with cool, clear days and nights. However, as with any mountain race, the weather can be unpredictable so pack accordingly and check the weather before you leave.
There are multiple campgrounds near the start/finish – Olallie Meadows, Lower Lake, Camp Ten, Paul Dennis and Peninsula. Click here for campground details and here for a map. In addition, the following hotels are located within one hour of the start.
From Portland The best route from Portland is through Estacada on Highway 224. From 205/224 (Clackamas), take 224 west for approximately 43 miles. Continue on Highway 46 for approximately 21 miles to Forest Service Road 4690. Turn left and continue for approximately 8 miles to Forest Service Road 4220. Turn right and drive approximately 5 miles to Olallie Lake Resort. The road is paved until the last 10 miles, where the road is gravel and suitable for all vehicles.
From Salem The best route from the Salem area is through Detroit to Forest Highway 46. Turn left just as you pass over the bridge into Detroit. Follow Highway 46 for approximately 21 miles to Forest Service Road 4690. Turn right and continue for approximately 8 miles to Forest Service Road 4220. Turn right and drive approximately 5 miles to Olallie Lake Resort. The road is paved until the last 10 miles, where the road is gravel and suitable for all vehicles. It is about an hour drive from Detroit to the start. NOTE: Map programs will not display this route during the winter as the road is closed while it is snowed in.
We love volunteers and our racers do to! To make this race a success we need people to help at bib pickups, race start and finish, aid stations, and on the trail. You can sign up for the assignment you’d like on Ultrasignup. Click on the green Volunteer button with the heart.
The Mountain Lakes 100 provides 6 points toward every race of the Ultra-Trail du Mont-Blanc®
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