Vallecito Lake Heavy Half

The Vallecito Lake Heavy Half is a scenic half marathon set around the picturesque Vallecito Reservoir in Colorado's San Juan Mountains. Scheduled for May 17, 2025, this unique race offers participants the chance to run on a course that includes sections typically closed to the public, such as a portion across Vallecito Dam. The event features a post-race party with live music, food, and unique finisher prizes.

It also serves as a fundraiser for local non-profits. The race is capped at 250 runners, and participants are encouraged to bring their own water bottles as it will be a cupless event. Visit the organization's website for the most recent information.