Beaverhead 55K Trail Run

July 8th, 2017 at 7:00 am

REGISTER (The 2018 55K is full.  We will not maintain a waitlist.  The race is overfilled similar to airline seats, there will be dropouts due to various issues (injury, family commitments, etc.).  It is suprising how consistent the 55K dropout percent is each year, allowing us to use the waitlist free approach (this is not the case with the 100K). By race day we will be at around 200-55K starters.)

Course Overview

The race starts at Lemhi Pass (12 miles east of Tendoy ID on Agency Creek Rd, 52 miles south west of Dillon MT on Lemhi Pass Rd).

The course from the start to mile 18 is on the Continental Divide National Scenic Trail (CDT). The CDT is on or very near the Continental Divide from the start to mile 18. The length of Continental Divide covered in this event also represents the boarder between Idaho and Montana. At mile 18, runners will leave the official CDT for the remainder of the course, but will continue along the true Continental Divide boarder for another 5 miles (mile 23). FYI, at mile 18 the CDT dips into Montana then turns parallel to the Continental Divide in-order to divert away from a section of hard to navigate terrain consisting of high mountains, skree, and cliffs. We as masochistic trial running RD’s think you should experience some of the beautiful skree fields but not the cliffs, so we will drop off the Continental Divide at mile 23 and descend into the head waters of Bohannon Creek and onto the finish line.

Because you are following the Continental Divide [separation between drainage to the Pacific Ocean (Idaho side) and Atlantic Ocean (Montana side)] you will always be high in the mountains following the natural elevation changes along the divide and will not ascend or descend into the deep creek and river valleys that boarder the course, except when you drop off the divide to the finish. Because of this, the entire race is at a high elevation with respect to this part of Idaho and Montana. This course has a good mix of terrain, with a mix of climbs, descents, smooth trail and technical sections.

The course is easy to follow.  The first time we (the RD’s) covered the entire course on a reconnaissance run  we did not get lost.  The main reason for this is that there exists good official CDT signage.  The official signage consists of CDT signs on trees and posts, the “i” mark on trees (note the new and old variations), and Rock cairns. On some parts of the course they help mark the trail and the Continental Divide near the trail. Besides these abundant existing markings, we will use additional yellow flagging to ensure that the course is clearly marked.

Course Flyover/Preview

UTMB Qualifying Race – 3 Points


Packet Pickup & Check In

The packet pick-up will take place from 4:00 PM to 6:00 PM on Friday July 13th at the Salmon City Park (On Hwy 28 south of Salmon next to the softball fields and gold course).  A pre-race meeting will take place at 6:00 PM following packet pick-up at the same location. For those travelling in from Montana or camping in near the start and cannot make it to the packet pick-up in Salmon, you can pick up your packet at the starting line starting at 6:00 AM.

All runners must check in at the starting line. You will receive your race bib at this time. This allows race management to know who is on the course. Allow yourself at least 30 minutes to check in before the race starts.


This is a no pacer race. Don’t be to worried about this, the 100K runners do not get them either.

Aid Stations

See the the course map below for aid station locations. Aid stations will be well stocked with typical ultra-running food, water, and sports drink.


Goldstone AS – 5:00 PM (10 hrs); Janke Lake AS – 6:30 PM (11.5 hrs). Runners must check out of these aid stations before the cutoff time or they will be pulled from the course and taken to the finish line with the aid station personnel. The cutoffs are for the safety of the runners and will be strictly enforced. A head lamp and/or flash light is required for those who will be at Janke Lake at 4PM and later. Runners who need a light will need to carry one from the start since there is not drop bag service for the 50K.

There is no finish line cutoff, but runners must check out of the Janke Lake AS by 6:30 PM to finish. These cutoff times are very generous and will allow a lot of time for runners to finish the race. This will allow those whom want to speed hike the course to participate.  We suggest runners understand their hydration needs and plan to carry the required water volume based on distances between aid stations.  In your training keep track of pace, distance, air temperature and water consumption to help you be prepared. It is better to pack around to much water than not have enough, trust me I know this from first hand experience.

Distance Changes

We realize there are often reasons to change race distances after you have registered. We will allow changes between both events if made by May 15th. Here is our policy:

100K to 55K: There is no refund for the price difference. You must log into UltraSignup and go through the change process:

  • Go to UltraSignup.
  • Log into your account.
  • Under your name and “Account Into” towards the upper right of the screen select “Registration History”
  • On the Beaverhead Endurance Runs line, to the right of the date select “Edit”
  • Under “Switch Event?” select 55K

55K to 100K: You must log into UltraSignup and go through the change process:

  • Go to UltraSignup.
  • Log into your account.
  • Under your name and “Account Into” towards the upper right of the screen select “Registration History”
  • On the Beaverhead Endurance Runs line, to the right of the date select “Edit”
  • Under “Switch Event?” select 55K
  • On the same page choose your shirt size (you need to re-select this even though you did it when you registered for the 55K), input your qualifying race, and choose your hoodie size.
  • On the same page, select “Update Registration” toward the lower right of screen
  • Select “Checkout” to go through the process of paying the additional $70.  There will be a small UltraSign up fee.  It may ask you for shuttles, etc… If you have paid for these already just skip.  During this process you will be dropping from the 55K, so you will need to immediately finish the checkout process to be added back into the 100K!!

Race Splits

Click for larger image.

Course, Topo, and Elevation Maps