Sangre de Cristo Trail Festival

The Sangre de Cristo Trail Festival, run by the Human Potential Running Series, takes place near Westcliffe, Colorado, with the Start/Finish at Greenhorn/Music Meadows Ranch beside the Grape Creek Trailhead. Runners can choose from six distances: 8-Mile, 27k, 50k, 50-Mile, 100k, and 100-Mile, all on the Rainbow Trail through the Sangre de Cristo Mountains. The course offers rugged, wilderness-bound scenery and a festive, community campout atmosphere, including on-site camping at the Start/Finish.

Notable features include finisher buckles for the longest distances, an 8-hour volunteer requirement for the 100-Mile, and a strong emphasis on camaraderie. 2025 updates add a 38-hour cap for the 100-Mile, remove the 150- and official 200-mile distances, and preserve a 200-mile buckle option via a self-supported route. Visit the organization's website for the most recent information.