2020 REGISTRATION IS CLOSED
Coronavirus (COVID-19) Update
It is with deep sadness that we have canceled the 2020 Timberline Marathon due to large gathering restrictions related to the pandemic. We will be back in June 5th and 6th, 2021 and look forward to seeing you then. Registrants please go to our COVID-19 page for options regarding your race entry.
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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!