Races›United States›Idaho›River of No Return Endurance Runs
Challis, ID, seen from above
Saturday 19 June 2027

River of No Return Endurance Runs

Challis, Idaho · United States
UltraCanyon

Idaho's wild Salmon River canyon country

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Course

Three distances starting and finishing in Challis, Idaho, in remote country bounded by the Salmon River to the south and the Frank Church Wilderness to the north. Routes take in Blue Mountain, the Lombard Trail, Bayhorse Lake and Buster Lake across varying mountain terrain.

108K108 km
55K55 km
32K32 km

Key dates

Date confirmed with the organiser · entry window checked by RunCalendar

About

River of No Return Endurance Runs is a wilderness ultramarathon near Challis, Idaho, in the rugged Salmon River canyon country once known as the 'River of No Return.' Runners choose 32K, 55K, or 108K distances through remote central Idaho terrain.

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