hardrock endurance run

Check out Maddie Mullen's author page.

Veterans of the Hardrock100-Mile Endurance Run in Colorado’s ragged San Juan Mountains are a different breed. The race punishes athletes with 13 mountain passes, summiting a 14,000-foot peak and more than 33,000 feet of total climbing—equal to climbing Everest from sea level (except that the low point on the Hardrock course is over 7,600 feet) and then some.

Check out Maddie Mullen's author page.

Check out Elizabeth Carey's author page.

Check out Megan Janssen's author page.

Check out Trail Runner magazine's author page.