OSS/CIA 50 Mile Night Run

The OSS/CIA 50 Mile Night Run is a unique endurance event set in the historic Prince William Forest Park, which served as a training ground for the OSS, the precursor to the CIA. Participants will tackle a challenging 50-mile course that consists of a 25+ mile loop run twice, primarily on single-track trails. The event features fully-stocked aid stations and allows for crew support at designated areas.

A night marathon option is also available, starting late in the evening. This event not only tests athletic endurance but also pays homage to the park's significant historical background. Visit the organization's website for the most recent information.