timberline RUN PURE
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timberline

marathon & ​half marathon
 june 5 & 6, 2021
Cascadia Sports Timing, LLC is excited to host the Timberline Marathon and Half Marathon! This will be a modified live event with COVID-19 safety protocols in place. It is essential that familiarize yourself with the DETAILS-COVID and COURSE pages on this website.  Please also read the COVID-19 Safety Plan carefully and fully understand how we are conducting the event and your responsibilities to help us ensure a safe environment for everyone there. 
CLICK THE BUTTON BELOW FOR IMPORTANT INFORMATION ON OUR COVID-19 SAFETY PLAN
COVID-19 SAFETY PLAN
Registration is OPEN for the June 5 & 6, 2021 Timberline Marathon and Half Marathon.
Masks   Social Distance   Hygiene

SIGN UP ​AND RUN

Get ready for the most picturesque marathon and half marathon trail running course in the Pacific Northwest! The course completely circles shimmering Timothy Lake on single track trails that are absolutely a runner's dream. This gem is nestled at 3,227 feet in the high Cascades and the views of Mt. Hood across the lake are extraordinary.

The journey begins at the Historic Clackamas Lake Ranger Station and takes runners on a magical course that traverses three rustic bridges over sparkling tributaries that feed the deep blue waters of the lake. The ever changing scenery and terrain create an experience that is unparalleled. The Timberline Marathon and Half Marathon is a must for any runner's calendar!
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​All rights reserved.
  • HOME
  • Registration
  • Details - COVID
  • Course
  • RESULTS
  • FAQ
  • Contact