Copper Kings 100
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Copper Kings 100 - Butte, Montana
The Copper Kings 100 is a single-loop 100 mile event held June 26-27, 2026 in Butte, Montana. The course starts and finishes at the Belmont Mine and includes approximately 63 miles on the Continental Divide Trail. The advertised elevation at the start is 5,650 ft and the highest point reaches 8,400 ft, with a total of 13,960 ft of vertical gain and loss. Much of the course sits above 6,500 ft.
Aid station spacing varies and the longest segment between stations exceeds 17 miles. The event uses a 40 hour overall cutoff and the field is capped at 150 runners for 2026. There is no qualification requirement for entry, and the event lists a nonbinary division.
Coaching support is available through an official partner that provides a free race specific 20 week training plan for registered and waitlist runners, plus group training runs and discounted one on one coaching options.
The event is produced by Onward Endurance LLC in partnership with the Montana Endurance Trail Foundation and takes place in Beaverhead Deerlodge National Forest and in Butte Silver Bow and Jefferson counties. It is fully permitted through the United States Forest Service, local counties, and the Montana Department of Transportation. Proceeds benefit Our Lady of the Rockies, Mile High Nordic Ski Education Foundation, and the Continental Divide Trail Coalition.
The organizer publishes a tiered withdrawal refund policy and a cancellation policy that specifies no refunds if the race is cancelled by the organizers. Visit the organization's website for the most recent information.
