Autumn Run - Buena Vista, CO

The Autumn Run, held annually on the third weekend of September in Buena Vista, Colorado, is celebrated as Colorado's premier half marathon. Set in the scenic upper Arkansas River Valley at the base of the Collegiate Peaks, the event offers a stunning course through this picturesque mountain town. Participants can choose from a half marathon, 10K, 5K, or a free Family Fun Run around McPhelemy Park's Town Lake.

The race is stroller-friendly and emphasizes sustainability with cupless racing and reusable cups. Post-race festivities include live music, a beer garden, and food trucks at McPhelemy Park, creating a vibrant, community-focused atmosphere. Visit the organization's website for the most recent information.