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Event details subject to change!
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Mountain Lakes 100
September 17 @ 5:00 pm - September 19 @ 2:00 pm PDT
An event every year that begins at 5:00 pm on day third of September, repeating until September 20, 2024
One of the country’s most beautiful 100 mile races starts at Olallie Lake and runs past 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.
Pasta feed: 5-7 p.m. Free for racers. Family and crew can purchase dinner for $7
Bib pickup: 5-7 p.m.
Bib pickup/Check in: 6:00 – 7:30 a.m. (all racers must check in on race morning, even if you picked up your bib the night before)
Race briefing: 7:45 a.m.
Race Start: 8:00 a.m.
Crew Briefing: 8:15 a.m.
Breakfast: 8:00 a.m.
Awards: 10:00 a.m.
Race Ends: 2:00 p.m.
Trail Work Requirement
As trail runners, we benefit from the work of those who built and maintain the trails where we run. Many of the organizations and groups who do this work have little and shrinking budgets and rely heavily on volunteers. We strongly believe that all of us should give back by volunteering to do trail work on a regular basis.
The top three male and female finishers will receive prizes from our sponsors. There are also many raffle prizes. All finishers will receive a belt buckle and a finisher pint glass. Those who finish under 24-hours earn a special buckle.
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 30s 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 many campgrounds near the start/finish. There are also some cabins and yurts at Olallie Lake Resort.
Detroit Lake is one hour of the start and has several lodging options, including:
All Seasons Motel, 130 Breitenbush Rd. Detroit, OR
Detroit Lake Lodge, 175 Detroit Ave., Detroit, OR
Government Camp is about 1.75 hours from the start and has lodging also.
Wonderland Expeditions rents fully-outfitted 4x4s and SUVs with popup campers and rooftop tents.
Double check these directions 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 east 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 and rough in spots. Passenger cars can certainly make this, but high clearance vehicles like trucks and SUVs are better.
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 and rough in spots. Passenger cars can certainly make this, but high clearance vehicles like trucks and SUVs are better. 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:
Long-term: This is for runners who are parking their car at the resort for the pasta feed Friday night or Saturday morning and not moving it again until sometime after they finish. This is the upper lot above the store. There is no overnight parking in this lot.
Short-term: This is for cars that will leave the resort after the race start to go to an aid station. This is the lot right next to the store. No overnight parking in this lot.
Roadside: Anyone who cannot find a spot in a parking lot will need to park alongside the road. THIS IS IMPORTANT AND APPLIES TO ALL RACERS, CREW, AND SPECTATORS. Vehicles can park on the east side of Forest Service road #4220 north of the resort, facing north. It is racers’ responsibility to make sure their crew know this. Parking along the east side of the road for aid station #4 and for the finish is allowed, but you need to make sure that other vehicles can easily get through. Cars parking on the west side of #4220 north of the resort will be ticketed and those racers will be disqualified.
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.
UTMB & Western States 100 Qualifier
The Mountain Lakes 100 provides 5 points toward every race of the Ultra-Trail du Mont-Blanc®
To confirm event status (sold out, cancellations, COVID restrictions, etc.), be sure to visit the event website above.