Rocky Mountain Slam

Rocky Mountain Slam

The Rocky Mountain Slam is a series of 100 mile mountain races centered on the Bear 100 in Logan, Utah. The listed location is 1400 E. 350 S., Logan. Registration for the series closes on Wed, Jul 15 at 11:59 PM MT.

The series began in the early 2000s with a core group of races: Hardrock, Leadville, Wasatch, and the Bear. In 2003 the Bighorn 100 was added. Originally the Slam required completion of Hardrock and The Bear plus two of Bighorn, Leadville, and Wasatch.

Finisher counts varied over the years, with as many as eight finishers some years and only one or two finishers after 2014, partly due to lottery systems at several races. In 2019 Ouray 100 was substituted for Hardrock when Hardrock was not held. The series was not held in 2020 due to COVID 19. In 2022 a revised Rocky Mountain Slam V2.0 was announced. Scout Mountain 100 was added in 2024, and High Lonesome 100 and Crazy Mountain 100 were added in 2026.

Under the V2.0 format runners must complete at least four races, with the Bear 100 required as the final race. The permitted races include Scout Mountain 100, Bighorn 100, Hardrock 100, Leadville 100, Wasatch Front 100, Ouray 100, Wyoming Range 100, High Lonesome 100, Crazy Mountain 100, and The Bear 100. There is no formal overall time record; an informal summation of a runner's fastest four runs including The Bear is noted. Registration in the series is required to cover organizational costs and to receive the finishing award. Visit the organization's website for the most recent information.