The course starts in the scenic Quarry Lakes Regional Recreation area and follows the popular Alameda Creek Trail up to the mouth of Niles Canyon. All courses are flat and fast! 

Course

The course is relatively flat, easy to follow, and will be marked with directional signage the entire way.

Course Surface:

5K - Crushed Rock (100%)

10K - Crushed Rock (100%)

Half Marathon - Crushed Rock (64%), Asphalt (36%)

Marathon - Crushed Rock (64%), Asphalt (36%)

Please be courteous on the trail. If you're passing another runner or hiker, announce "on your left" as you approach.

Headphones are allowed on dirt road sections only. Please do not wear headphones on single-track trail, while crossing paved roads, when getting aid at aid stations, or while crossing the finish line.

Your bib number indicates the distance that you're running. If you want to change your distance, please send us an e-mail or let us know by check-in, at the latest.

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