Greenland, CO--Discover who is the fastest trail runner in Colorado on Saturday, May 4. The Greenland Trail 50K has been awarded the designation as Colorado’s State Championship 50K by the Road Runners Club of America. Runners from throughout the state can compete for overall and age group awards. The race will take place at Greenland Open Space Park in southern Douglas County, south of Castle Rock, just off I-25.

The Greenland 50K is currently celebrating its ninth year. In addition…