Wyoming Range 100 endurance run takes place August 8-10.

By SVI Staff
July 26, 2025

The fifth annual Wyoming Range 100-Mile Endurance Run will take place on August 8-10. Nearly 90 runners from across the United States will travel by foot for 105 miles through the Big Piney and Greys River Ranger Districts of the Bridger-Teton National Forest. Nearly 104.8 miles of the event take place on public lands.

“We are honored to introduce runners and their families to this landscape and invite them to support our stewardship efforts. Every year, the Wyoming Range 100 donates thousands of dollars to Friends of Bridger-Teton, a non-profit committed to all 2,500 miles of trail in the Bridger-Teton National Forest,” said the race director, Denis Cook. “And we are indebted to so many dedicated members of the US Forest Service, who play an integral role in making this extraordinary event possible.”

The race begins on Middle Piney Lake, about 30 miles west of Big Piney, and ends at the Box Y Ranch, about 30 miles south of Alpine, WY. Along the way, runners will climb over 24,000’, pass dozens of mountain lakes, and witness the many uses of our national forest system at work.

A map of the race course is available on the race website.

About the Wyoming Range 100

The Wyoming Range 100 is a point-to-point ultramarathon in Southwest Wyoming. In it’s fifth year, the race has gained notoriety for being a challenging yet welcoming 100-miler. The race finishes at the Box Y Lodge and Guest Ranch along the Greys River.

To learn more and discover how you can get involved, please visit Everlong Endurance.

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