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Rocky Mountain Slam

Logan, United States • 27 Sep 2025

The Rocky Mountain Slam is a challenging ultramarathon series held in the Mountain West region, centered around the Bear 100 race in Logan, Utah. Participants must complete at least four 100-mile races, with the Bear 100 as the mandatory final event. Optional races include the Scout Mountain 100, Bighorn 100, Hardrock 100, Leadville 100, Wasatch Front 100, Ouray 100, and Wyoming Range 100. The series celebrates the rugged terrain and high-altitude challenges of the Rocky Mountains, offering runners a demanding and rewarding experience. The Slam emphasizes endurance and versatility across multiple iconic mountain ultramarathons. Visit the organization's website for the most recent information.

United States Utah Logan

Race information

Website Registration
100 mi
100 Miles
Visit the organization's website for the most recent information.
Trail runs nearby

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UTMB Index