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 25.
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 for $5. We hope everyone stays and enjoys the fun!
The weather in the northwest in September is usually fairly stable with cool, clear days. The temperatures can drop to the 30’s during the nighttime. 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.
Double check these direction to what Google Maps gives you. Google Maps may tell you to turn onto Forest Road #4220 from Hwy 46. Do not take this as it is a much slower and bumpier option for high-clearance vehicles. The below are the best routes.
From Portland The best route from Portland is through Estacada on Highway 224. From I-205/224 (Clackamas), take Hwy 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 turns to gravel and is slow-going, but 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 turns to gravel and is slow-going, but 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.
Parking at Olallie Lake Resort is tight and we need to be considerate of other visitors and forest users. There are three places to park:
We love volunteers and our racers do to! To make this race a success we need almost 100 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®
Mountain Lakes 100 is now a Western State 100 qualifier
And you can participate in the conversations on Twitter: Go Beyond Racing Twitter