Mountain Lakes 100

Mountain Lakes 100

Mountain Lakes 100 is a 100-mile trail race that follows much of the Pacific Crest Trail between Mt. Hood and Mt. Jefferson. The course passes dozens of alpine lakes and includes technical, rocky sections and extended single-track trail. Total elevation change on the course is listed at 11,700', with low and high points near 3,300 feet and 5,700 feet respectively.

The event is scheduled for September 18-19, 2027 and has a field capacity of 150 runners. Entry fees are listed at two levels, $375 and $385, depending on the registration period. There are no transfers and no refunds; cancellations more than 30 days before the race receive a 50% credit toward a future race, while cancellations 30 days or less before the race receive no credit.

All entrants and waitlisters must complete eight hours of trail work between October 1 and September 1 and submit a signed form; entrants without completed hours forfeit their spot on September 2. The course is remote with very limited cell or internet service, so live tracking is not available beyond finish-line results; race operations use manual tracking and HAM radio at aid stations. Volunteers are required for many roles and organizers note that horses may be encountered on the multi-use trail.

Awards include prizes for the top three male and female finishers, age-group and non-binary awards, raffle prizes, and finisher items such as a belt buckle and pint glass. Long-term parking at the start area is limited and there is a $20 cash fee for long-term parking at the resort. Visit the organization's website for the most recent information.

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