Mountain Lakes 100

Jefferson County, Oregon, United States

Sep 19-20, 2026 - Saturday to Sunday

100mi, Ultra

Race Information

This truly is the most beautiful Oregon 100 miler. The course is on the iconic Pacific Crest Trail and features the best trail running the Pacific Northwest has to offer – technical and rocky sections, lots of views of mountain peaks and lakes, and plenty of luscious of single track. You’ll run between Mt. Jefferson and Mt. Hood and experience outstanding on-course support while making the journey to the finish line.

πŸ‘ Run Pick of the Month: Red, White & Blues 5K & 10K

πŸ“West Linn - June 27, 2026

πŸ’Έ SAVE $10 On Your Entry. Use Code RUNRWB26

πŸ˜„ Why We Like This Run
βœ… Beautiful course that starts and finishes right on the heart of Willamette Falls Drive
βœ… Free hot dog at the finish line
βœ… It’s a downtown takeover designed to kick-start your Fourth of July festivities.

Celebrate Independence Day at the Red, White, & Blues 5K & 10K, the ultimate summer tradition taking over downtown West Linn.

Whether you're chasing a new personal record or just looking for a festive stroll with the family, this event is the perfect way to ignite your holiday spirit.

Get Event Info

 

πŸƒ Training for This Race? 

Get a personalized training plan that adapts for every run. RunDot analyzes every run and automatically adjusts your training plan.

🎁 2 weeks free for RunGuides runners

Get My Free Plan

Race Facts

Race Size: 100 - 500

Elevation: Lots of Hills

Course Type: Trail

Boston Qualifier: No

Kids Run: No

Where to Stay

Use this map to find hotels and airbnb accommodation near this race location.