Colorado’s Legendary 100-Mile Hardrock Race Cancelled Due to Safety Concerns Caused by Historic Snowfall The 100-mile Hardrock Endurance Run, which was scheduled to start early in the morning on July 17, has become a victim of โhistoric snowfall, avalanches, avalanche debris” and has been cancelled due to “an inability to reach certain aid stations and uncertain conditions on more than 40% of the course,โ according to an official Facebook post. Related: Kilian Jornet Just […] SnowBrains | June 10, 2019 0 Comments