River Of No Return Endurance Runs

Saturday, Jun 19, 2021 at 5:00am

Challis City Park
North of Main Street
Challis, ID 83226

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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.


108k: 5:00 am
55k: 6:30 am
32k: 8:00 am

Course Information:


The 108K has about 17,000′ elevation gain and 9 aid stations.  It is a large, single-loop course that has five significant climbs, two of which will take runners over 9000′ to nearly 10K.  The majority of the course is on two-trail (meaning ATV width trail), with a few miles of dirt road, a lot of of single track trail, and some pavement at the finish coming into Challis.


The 55K has about 9300′ elevation gain and 5 aid stations. It has two major climbs that take runners over 8000′ and is mostly narrow ATV trail, some dirt road and some pavement that will bring runners to the finish in Challis. It is a large loop, with a 3.5 mile down and back from Keystone Aid Station to the old Ghost Town of Bayhorse, which will allow runners to see crew members and also see where they stand against the field at that point.


The 32K  has about 4700′ elevation gain and 1 aid station.  The race is also a large loop that has a large climb early on and a short out and back to the one and only aid station at Birch Creek Saddle near mile 9 before a fast descent to the Finish.

Clcik Here for 108k Course Map

Clcik Here for 55k Course Map

Clcik Here for 32k Course Map

Click Here for Registration

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