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Hardrock 100

Extremely Difficult


104.3 mile 167.8 kilometer loop
73% Runnable
Extremely Difficult


Ascent: 32,056' 9,771 m
Descent: -32,057' -9,771 m
High: 14,022' 4,274 m
Low: 7,698' 2,346 m


Avg Grade: 12% (7°)
Max Grade: 68% (34°)


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Trail shared by Jason Smith

One of the world's most iconic ultra races. A sweeping tour of Colorado's majestic San Juans.

Jason Smith

Features Birding · Lake · River/Creek · Views · Wildflowers · Wildlife


In order to score an HR bib, you must first meet rigorous qualifying criteria:
  1. Complete one or more of the 100+ mile races listed by the Race Director over the past year.
  2. Win the Lottery! If you are looking to score your first HR bib, your odds are 47 in 1000.
  3. Perform 8+ hours of service at an ultra event. Refer to the official race website for all details & instructions on the entry process.

Runner Notes

Be ready for anything that (this much) of a rugged mountain environment can or will throw at you - heat, cold, rain, snow, exposure, bears, lions, altitude related exhaustion & hallucinations. Note that the race direction changes every year. On even years it runs clockwise, and it runs counterclockwise on odd years.


Whether or not you are racing, you can still experience this amazing course on your own terms. An increasing number of runners are going for the Softrock 100 adventure. Get a crew & break it up over several days, without sweating over any lottery. You can camp and/or do it Euro-style with beer & beds in Ouray, Silverton, Lake City. Even distributed over four days, this is still a huge physical / mental challenge that will demand your utmost endurance & attention to detail in order to safely navigate these mountains.

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Jul 10, 2016
Andy Hewat

Trail Ratings

  5.0 from 5 votes


in Silverton


  5.0 from 5 votes
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95 Views Last Month
11,401 Since Jul 2, 2015
Extremely Difficult



Runners descending Handies Peak towards Sloan Lake. Grouse gulch is the next aid station. American Peak is the mountain in the backdrop.
Jul 5, 2015 near Silverton, CO
Near the summit of Handies Peak, 14,048 ft., the high point of the race course. A passing storm created a rainbow over Grizzly Gulch. July 2009.
Jul 5, 2015 near Silverton, CO
Below Grant/Swamp Pass en route to the Kamm Traverse and KT aid station.
Jul 5, 2015 near Silverton, CO
American Peak, American Basin, 4th of July weekend
Jul 12, 2015 near Silverton, CO
The steep switchbacks from Oscar's Pass down to Chapman.
Jul 5, 2015 near Telluride, CO
Looking across Stony Pass towards Green Mountain, from near Buffalo Boy Ridge.
Jul 5, 2015 near Silverton, CO


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