Runners follow what is roughly an out-and-back loop course at Snoqualmie’s Cinco de Mayo Half Marathon, which is largely fast and flat except for a few rolling hills throughout the route. The race starts and finishes at Snoqualmie’s Mt. Si High School, and takes runners along the Snoqualmie River for several miles of the race route, including a stretch along the edges of Three Forks Natural Area park.
(MORE: Cinco de Mayo Half Marathon event details)