100 Miler 50 Miler 21 Miler
 

Join Us for the Next Running:

June 6-7, 2025!

Registration Opens in December 2024

Choose Your Adventure!
100M - 50M - 50K - 23M

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Welcome to Scout Mountain Ultras!

Scout Mountain Ultras is an annual celebration of the trail running community held the first weekend of June in Pocatello, Idaho, USA.

The event serves as an opportunity to gather together and celebrate months and years of the practice of running as we challenge our bodies, minds and spirits on the trail. We offer a variety of distances to satisfy the curiosity of all, from the beginning trail runner to the experienced veteran. At times, we have joked that we are an environmental event with a running problem. We strive to elevate the environmental literacy of the trail running community through various initiatives including but not limited to reduction the event’s environmental footprint, interfacing grassroots environmental and conservation groups with our participants, meaningful donations of race proceeds to conservation and environmental efforts and re-thinking the items offered to runners in ways that limit waste. 

Trail running takes away many of the restrictions or rules about how we should run or how we should look. We can spend hours wandering through stands of pines and aspens, taking in a symphony of color as we pass wildflowers, avoiding the pressure to be something we aren’t. We can be ourselves and be happy. We all deserve this same opportunity, regardless of race, ethnicity, religion, social class, gender, sexual orientation, gender identification, ability, or age. We are committed to creating space at Scout Mountain Ultras and have committed to at least fifty percent of the field at each of our events will be held for women, femme and non-binary folks. We will not tolerate harassment of any kind in our race or online spaces. These trails have been a doorway to another world, and as the race directors, we will do everything we can to keep those doors open for everyone behind us. All are welcome here.

Sincerely, 

Tanae and Luke Nelson

Race Directors for Scout Mountain Ultras

 
 
 

Overview 

This is a challenging and beautiful event in the Bannock and Pocatello mountain ranges surrounding Pocatello, Idaho. Distances and elevation gain/loss based on caltopo maps:

1) 100-miler: 102.2 miles, 22,276′ of gain, 22.284′ of loss
2) 50-miler: 54.9 miles, 11,328′ of gain, 11,375′ of loss
3) 50-km: 35.5 miles (57.7 km), 7,540′ of gain, 7,587′ of loss
4) 23-miler: 23.1 miles, 5,685′ of gain, 5,685′ of loss

All four distances summit our namesake, Scout Mountain!

Course Maps

The snow has melted enough that we can safely run all standard courses for 2023! There will be more snow for you to run over than an average year.

We are requiring some mandatory kit: a mylar emergency blanket and a whistle.

Course Profiles:

100mile 50mile 50km 23mile

Caltopo maps:

100mile 50mile 50km 23mile

GPX files:

100mile 50mile 50km 23mile

Historical Information

  • 2023 - 50 km race added (it’s actually 57.7 km, 35.5 miles)

  • 2020 - Scout Mountain Ultras was cancelled due to COVID-19

  • 2018 - Scout Mountain Ultras 100 mile, 50 mile and 21 miles started

  • 2014 - New 100k, 60k and 35k routes

  • 2013 - Pocatello 50 (miles) followed the original course

  • 2012 - Pocatello 50 (miles) followed the original course

  • 2011 - Pocatello 50 (miles) followed an alternative snow course

  • 2010 - Pocatello 50 (miles) was cancelled due to inclement weather

  • 2009 - Pocatello 50 (miles) followed the original course

 
 
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