River of No Return Endurance Runs

Saturday, Jun 14, 2025 at 5:00am

Challis City Park
North of Main Street

That’s right. The Wolf, the Coyote, the Fox, the Bear, the Cougar: you are not at the top of the food chain here, so Run Fast.

With a start and finish in Challis, Idaho, the River of No Return (RONR) Endurance Runs offer runners a unique opportunity to experience Idaho’s remote beauty. Choose between distances of 32k, 55k, or 108k, where you’ll be challenged by varying terrain and awed by gorgeous scenery. Cradled by the Salmon River to the south and the Frank Church Wilderness to the north, the RONR Endurance Runs provide participants the chance to see – among other sites – Blue Mountain, the Lombard Trail, Bayhorse Lake, and Buster Lake.

Schedule:

108K: 5:00
55K: 6:30
32K: 8:30 approx.

Course Info:

55k And 108k Start And Finish At The Challis City Park

32k Starts At Bayhorse And Finishes At Challis City Park

55K & 108K runners will exit the City Park, cross Main Street, Challis and run down the ATV trail headed out of town. Within 2-1/2 miles, the course transitions from town to country with mountainous elevations visible in the near distance.  The courses share the initial 20 miles through BCS, Keystone, and Bayhorse.   Near the end of the runs, spectators and fans will see participants barrel down the last mile on Main Street to finish where it all began some hours earlier. Runners are allowed to have crew and fans complete the final run down Main Street and into the park to the finish with them.

Designed to be tough and beautiful, these courses will tease runners with a downhill start and finish in Challis (elev 5200’) sandwiched around some big mountain climbs over 8, 9, and nearly 10,000 feet. Elk, deer, eagles, bears and wolves add to the mystique of the River of No Return, as do the forgotten mines and mining communities, old Idaho traditions – all surrounded by the very supportive community of Challis.

The courses are crew-friendly with multiple aid stations that are support team-accessible.

Runners will be treated to a fast finish down Main Street Challis and back into the Challis City Park, where you will be greeted with fun festivities.

Click here for Course Map

Awards & Schwag:

The following overall places will be awarded:

- Top 3 men/women overall
- Top 3 in each age division
- Top 3 Masters (over 40)
- Tech Shirts for all participants.  Finishers jackets 55K, 108K.
- Finisher RONR mug for 32K.  Custom RONR finisher River Rock for all finishes.

Click here to Register

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