bighorn trail 100

100M Course Description

***The race committee reserves the right to respond to potential safety contingencies posed by potentially adverse weather conditions or other course conditions to make "last minute" course changes. If any such course changes are required, runners will be fully briefed at the Friday pre-race briefing.  


We understand races sometimes don’t go as planned and this can be frustrating for participants. However, cutoff times are strictly enforced and  are firm regardless of changing course conditions once the race has begun. Our race director stands behind the aid station captains who have been informed that, under no circumstances will changes be made to the course or cut off times  once the race is in progress.  This event is "wild and scenic" and  mother nature is a contender, but this is a non-negotiable matter before, during, or after the  event. ***


Bighorn Mountain Trail 100 Run Course Description

The Bighorn Mountain Trail 100 is an epic mountain endurance adventure crossing through Little Bighorn and Tongue River areas of the Bighorn National Forest. Participants have 34 hours to navigate this remote, technical out-and-back course (average 2.94 mph). Mother Nature provides over 20,500 feet of ascent and 20,750 feet of descent testing the most seasoned ultra-runners with 76 miles of technical single-track trail, 16 miles of rugged 2-track jeep trail road, and 8 miles of gravel road. The Bighorn 100 is one of the classics, demanding you to reach deep down to your core of mental and physical fortitude. 


The Bighorn 100 begins where the scenic Tongue River has carved out an impressive canyon located approximately 1.25 miles from the Tongue River Canyon Trailhead and 3.5 miles from the Town of Dayton on Tongue Canyon Road (4275 ft). Runners begin their outbound journey with views of steep cliffs rising overhead, refreshing glimpses of the Tongue River, and spectacular views of the iconic limestone formation, locally known as ‘The Needle”, as they make their way on a gravel road to the Tongue River Canyon Trailhead (trail #25, 4240 Ft, mile 1.25 outbound, mile 94.8 inbound). Limited aid is provided here by Tongue River Valley Community Center on the outbound trip.


The Trailhead is the gateway to the noble Bighorn Mountains and first remote aid station, Lower Sheep Creek (5025 ft, mile 3.5 outbound, mile 92.5 inbound). Thank the Burlington Northern volunteers and their crew for packing  in supplies by foot for your mountain trek. They are a steadfast group of folks and will be there on the inbound miles welcoming you on  your final footsteps towards the finish.  The water for this station is all hauled in by John Riley and his horse pack string the week before the race which is quite a site. 


Meandering along the Tongue River Canyon Trail, runners begin a challenging ascent through a sea of Spring Lupine, Balsam Root, and the Wyoming state flower the Paint Brush  to Horse Creek Ridge (7450 ft, mile 7.5 outbound, mile 88.5 inbound). This is Bighorn’s first introduction to one of many grueling climbs and rugged technical trails. The heat can be brutal in the canyon leading to DNFs later in the race. Move conservatively taking in fluids early and often. 


Cresting Horse Creek Ridge offers an opportunity for runners to peer over the wild terrain they have covered before making the steep, yet short decent into the Sheep Creek Drainage. A rustic footbridge crossing Sheep Creek guides runners along single-track trail and 2-track trail until reaching Upper Sheep Creek Aid Station. This dedicated  aid station's  captain and crew travel all the way from Rapid City, SD! They arrive here early and stay late, keeping the cool vibes going for the duration of the event. Send them some energy on your outbound trip and they will pay it back in full wearing grass skirts and coconut bras (yep even the guys)  as you pass by the next day!  Exchange "Mahalo" before you leave (road #198, 7450 ft, mile 8.5 outbound, mile 87.5 inbound).  


Head west over the next 3 miles of rolling single-track trail and 1.25 miles of 2-track trail (road #201). Camp Creek Ridge rises to approximately 7854 feet and 12.25 miles into the race. Kick back a little while descending through Camp Creek drainage on narrow single-track trail leading to a short section of gravel road where roads #168 and #149 greet one another and welcome runners to the saddle of the Dry Fork Ridge Aid Station on Freeze Out Road (road #149, 7480 ft, mile 13.5 outbound, mile 82.5 inbound). This is one of three major aid stations along the course offering crew, drop bags, and pacer (inbound only). It is no small feat to manage this aid station, so please pay your gratitude to the dedicated Dry Fork Family for offering their services for 25 years! 


It is likely you will feel the toll the past 13.5 miles of ascent and weather conditions have taken on you. Remain calm, be smart, trust your training and remember to gear down giving yourself time to take care of your needs. 


While descending into the Dry Fork drainage, don't forget to bring your eyes off the trail and take in the wide-open scenery and appreciate the sights. Over the next 6 miles of primitive, red dirt, 2-track trail, this drainage has spectacular views of elk meadows and small creek crossings. Short sections of steep uphill and downhill will work the legs as you settle into a sensible rhythm moving towards the next aid station, Kern’s Cow Camp. 


Kern’s Cow Camp Aid Station reveals the next breathtaking section of single-track trail on Dry Fork Trail at Miller Creek (trail #4, 6600 feet, mile 19.5 outbound, mile 76.5 inbound). The cow camp, aptly named after the Kerns family who used this primitive camp while tending to their summer cattle herds, can be seen to your left after you leave the aid station. Chris Carroll and his crew made this station the famous "bacon station"  way back when there were no bacon stations. They were on to something that is now commonly used on other courses. 


Relentless forward motion pushes runners on to a dilapidated stock tank approximately 3 miles after Kern’s Cow Camp.  Enjoy a short yet well needed opportunity to rest while filling water bottles with fresh spring water (tested and safe to drink). This forested single-track trail is a beautiful yet challenging stretch as it traverses the east face of the Dry Fork Canyon to Bear Camp Aid Station (6800 ft, mile 26.5 outbound, mile 69.5 inbound). Give a kind word of gratitude to Stacy, Bighorn’s original race director, and her husband Roger! Their energetic team packs supplies  up 3000 ft of ascent humbly labeled  "the haul".  Head north down a treacherous section of Bighorn’s infamous shoe sucking mud and steep single-track trail. Go with the flow, but remind yourself it is still early in the race,  and saving your quads on this downhill will serve you later. The trail crosses the Little Bighorn River into a major crew/drop bag/pacer aid station, Sally’s Footbridge (trail #4 intersects Little Bighorn Trail #50, 4590 feet, mile 30 outbound, mile 66 inbound). 


Sally’s Footbridge named for an old friend of Bighorn who passed away in 2015, now captained and staffed by a team from the local YMCA, is a full menu, well stocked, aid station with plenty of volunteers to help make you comfortable. It is even rumored you may find a treat or two here form McDonald’s. Take a brief break, re-hydrate, consume some well-needed calories, and grab some warmer gear and your headlamp for this next section. Heeding this advice will pay dividends in the “long run” as this next section can dish out a hefty swing in temperature and darkness approaches quickly in the mountains. You may need your light if you leave Sally’s footbridge later in the day.


Ascending once again, Little Bighorn Canyon pulls runners up arduous rocky trail 3.5 miles to Cathedral Rock Aid Station (5080 ft, mile 33.5 outbound, mile 62.5 inbound).  The crew provide a remote yet essential selection of aid that they have packed in on foot. They are known for their "hot and ready" soup!  It is crucial to top fluids off at Cathedral Rock as the next aid station, Spring Marsh, is a solid 7 miles away. Be sure to  give your gratitude to the volunteers who filter that water by hand. 


The Little Horn Canyon is a standout with grand views of the Little Bighorn River juxtaposed with mighty canyon walls creating softness where your feet fall between the two extremes. Take in the beauty of your surroundings and glide through secluded single track-trail and wooded hideouts opening to meadows that host Wyoming’s wildlife. 150 yards before crossing Leaky Creek you might notice a sign announcing your approach underneath Leaky Mountain. Look to your right and you’ll see why it was appropriately named Leaky Mountain. Hold on tightly to a secure hand rope while crossing over a rustic log bridge aiding runners to safety over Leaky Creek. 


Continuing up the Little Horn Canyon, warm and welcoming bon fires prepared by aid station volunteers invite runners to Spring Marsh Aid Station (6920 feet, mile 40 outbound, mile 56 inbound). Spring Marsh is situated next to a fresh mountain spring providing the Bighorns’ finest water. Yes, we tested this spring water too!  The location of this aid station exposes runners to Mother Nature’s temper and participants can experience some threatening weather conditions. Thank Captain, John Gaviotis, and his crew for braving the conditions to offer aid at Spring Marsh.  John  is an accomplished Iron Man competitor who believes in giving back to fellow athletes.  Join us in wishing  him luck as he travels to Nice France  the day after the race to compete in a full Iron Man. 


The Bighorns begin to cast their blankets of shadows beckoning nighttime adventures as runners ascend single-track trail through Wagon Box Creek and Duncum Creek. After passing through an Aspen grove, a steep yet short ascent may deliver a glimpse of the next remote aid station. Give Captain Matt McMeans and his team a friendly HOWDY  when you pass through Elk Camp (7430 ft, mile 43 outbound, mile 52.5 inbound). This limited aid station is hosted by a rough and tumble group of real  cowgirls/cowboys and their trusty equine friends. Your supplies made it here through the art of horse packing skills.  They serve up a special "banana" entree and those who've had it in the past can attest to the magic it creates.


Runners continue ascending the Willow Creek drainage crossing Devils Canyon Road on the Bighorn Mountain Divide (8951ft, mile 47 outbound, mile 49 inbound). Most of this section will be traveled during the dark hours but, know even in the darkness, the Bighorns do not disappoint on the gift of scenery. Following single-tack trail and a short section of road at a slight descent through Porcupine Creek drainage, it is clear the turn-around point, JAWS Trailhead, peaks around the next bend in the trail (8800 feet, mile 48). This fully supplied aid station with access to crew, drop bags, and pacers is complete with experienced aid station volunteers. Lisa Mohatt and the JAWS team readily await the opportunity to equip each individual runner with mental and physical encouragement for their return. Camp chef Cara and her team will make you something special short order style while you take care of your needs.  CREW and PACERS are allowed to be inside the JAWS aid station when you are there, but for crowd control reasons will be required to wait outside the tent in the CREW and PACER waiting area until you arrive at JAWS.  There will be a warm fire and lots of camaraderie in the waiting area.  Please make sure your CREW  is prepared for freezing temperatures,  long wait times, and that they come prepared with personal food and drinks as there are no food services near JAWS.  


Revitalized from JAWS aid station,  runners head out following their previous footsteps on the same course returning  through the following aid stations:

Elk Camp - mile 52.5  elevation 7430

Spring  Marsh - mile 56 elevation 6920

Cathedral Rock - mile 62.5 elevation  5080

Sally's Footbridge mile 66 elevation 4590  drop bag station

Bear Camp - mile 69.5 elevation 6800

Kerns Cow Camp - mile 76.5 elevation 6600

Dry Fork - mile 82.5 elevation 7480 drop bag station

Upper Sheep Creek - mile 87.5 elevation 7450

Lower Sheep Creek - mile 92.5 elevation 5025


Tongue River Canyon Aid Station captained by Coach Tim Maze and the Tongue River Cross Country team, keep this aid station fully stocked providing essential aid and encouragement for your return (4240 ft, mile 95). The last five miles of gravel road reveals itself as a means to and end. Leaving the Tongue Canyon Trailhead, the Tongue River guides runners along gravel road to Home Stretch Aid Station (4040 ft, mile 98). Thank the Schwend family  for hosting and make sure to leave with a refreshing icy cold  otter pop in your hand. Continue on to  one last rustic footbridge adjacent to U.S. Highway 14.  Runners  will feel emotion bubbling, as the finish is only a ½ mile away. Cross U.S. Highway 14 into Dayton making a left onto 3rd St. and another left onto Broadway to a memorable culmination of an experience only the human spirit can realize as you cross the FINISH LINE and reunite with family and friends to celebrate at Scott Park in Dayton (3970 ft, mile 100) 


Have a snack, grab a nap, take the shuttle to Tongue River High School for a shower, lounge on the soft well kept grass in the park, and enjoy a local BEER and some live music, partake in the post race picnic featuring  Wyoming beef burgers,  (or veggie burger if you prefer) and hang out for awards!  You have just completed a magnificent journey you will never forget! 





Upper Tongue River Canyon Trail

Upper Tongue River Canyon Trail

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100M Aid Station Information

 

Outbound Aid Stations


Start ~ Tongue River Road ~ 10:00 AM   

Mile 0  Elevation 4275'

Moderate Assistance

Crew and Spectators allowed


Tongue River Trailhead ~ 10:25 AM Cutoff 

Mile 1.25 Elevation 4240'

Minimal Aid - water only

No Crew/Pacers


Lower Sheep Creek ~ No Cutoff    

Mile 3.5  Elevation 5025'    

Minimal Aid - water, hydration drink, trail mix, pretzels, 

granola bars, candy, nuts. 

No Crew/Pacers   

No vehicle access  


Upper Sheep Creek ~ No Cutoff 

Mile 8.5  Elevation 7450'

Minimal Aid - water, hydration drink, trail mix, pretzels, 

granola bars, candy, nuts, fresh fruit. 

No Crew/Pacers   

 

Dry Fork Ridge ~ 3:00 PM Cutoff

Mile 13.5  Elevation 7480'   

Major Aid - water, hydration drink, meat and cheese roll ups, 

sandwiches, soup,  chips, fresh fruit, soda, cookies, candy, nuts, 

jerky, special items.  

Crew Allowed - Parking Area 1/4 m from Aid Station

Drop Bag Station


Kern's Cow Camp ~ No Cutoff

Mile 19.5  Elevation 6600'

Moderate Aid - water, hydration drink, trail mix, pretzels,

granola bars, candy, nuts, fresh fruit.    

No Crew/Pacers


Bear Camp ~ No Cutoff

Mile 26.5 Elevation 6800'   

Minimal Aid- water, hydration drink, pretzels, 

granola bars, candy, nuts.

No Crew/Pacers  No vehicle access


Sally's Footbridge ~ 8:30 PM Cutoff

Mile 30   Elevation 4590'    

Major Aid- water, hydration drink, meat and cheese roll ups, 

sandwiches, soup,  chips, fresh fruit, soda, cookies, candy, nuts, 

jerky, special items.  

Crew/Pacers Allowed - Parking 1/2 m from Aid Station

Medical Check   

Drop Bag station


Cathedral Rock ~ No Cutoff

Mile 33.5 Elevation 5080'   

Minimal Aid -  water, hydration drink, pretzels, 

soup, granola bars, candy, nuts.

No Crew/Pacers


Spring Marsh ~ No Cutoff

Mile 40  Elevation 6920'   

Moderate Aid - water, hydration drink, trail mix, pretzels,

granola bars, candy, nuts.

No Crew/Pacers


Elk Camp ~ No Cutoff

Mile 43.5  Elevation 7430'  

Minimal Aid - water, hydration drink, pretzels, 

soup, granola bars, candy, nuts.

No Crew/Pacers


Jaws Trailhead TURN AROUND - 4:00AM Cutoff

Mile 48 Elevation 8800'  

Major Aid -  water, hydration drink, Meat and cheese roll ups, 

sandwiches, soup,  chips, fresh fruit, soda, cookies, candy, nuts, 

jerky, special items.  

Crew/Pacers Allowed 

Medical Check

Drop Bag Station



Inbound Aid Stations


Elk Camp ~ No Cutoff

Mile 52.5 Elevation 7430'

Minimal Aid-  water, hydration drink, pretzels, 

soup, granola bars, candy, nuts.

No Crew/Pacers


Spring Marsh ~ No Cutoff

Mile 56 Elevation 6920' 

Moderate Aid - water, hydration drink, trail mix, pretzels,

granola bars, candy, nuts.

No Crew/Pacers


Cathedral Rock ~ No Cutoff

Mile 62.5 Elevation 5080'   

Minimal Aid -  water, hydration drink, pretzels, 

soup, granola bars, candy, nuts.

No Crew/Pacers


Sally's Footbridge ~ 10:00AM Cutoff

Mile 66 Elevation 4590'    

Major Aid -  water, hydration drink, meat and cheese roll ups, 

sandwiches, soup,  chips, fresh fruit, soda, cookies, candy, nuts, 

jerky, special items.  

Crew/Pacers Allowed 

Medical Check

Drop Bag Station


Bear Camp ~ No Cutoff

Mile 69.5 Elevation 6800' 

Minimal Aid - water, hydration drink, pretzels, 

granola bars, candy, nuts.

No Crew/Pacers


Kern's Cow Camp ~ No Cutoff

Mile 76.5 Elevation 6600'

Moderate Aid  - BACON,  water, hydration drink, soda, sandwiches,  trail mix, 

pretzels, granola bars, candy, nuts.

No Crew/Pacers


Dry Fork Ridge ~ 3:00PM Cutoff

Mile 82.5 Elevation 7480'   

Major Aid - water, hydration drink, soda, meat and cheese roll ups, 

sandwiches, soup,  chips, fresh fruit, soda, cookies, candy, nuts, 

jerky, special items.   

Crew/Pacers Allowed

Medical Check

Drop Bag Station


Upper Sheep Creek ~ 4:30PM Cutoff

Mile 87.5 Elevation 7450'

Moderate Aid - fresh fruit, water, hydration drink, trail mix, pretzels,

granola bars, candy, nuts, soda.

No Crew/Pacers


Lower Sheep Creek ~ No Cutoff

Mile 92.5 Elevation 5025'

Minimal Aid - water, hydration drink, pretzels, 

granola bars, candy, nuts.

No Crew/Pacers


Tongue River Trailhead ~ 6:45PM Cutoff

Mile 94.8 Elevation 4240'

Moderate Aid - fresh fruit, water, hydration drink, trail mix, pretzels,

granola bars, candy, nuts, soda. 

Crew on foot or BIKE ONLY - No vehicles  

  

Home Stretch

Mile 98  Elevation 4040'

Moderate Aid -  fresh fruit, water, hydration drink, trail mix, pretzels,

granola bars, candy, nuts, soda. 

Crew on foot or BIKE ONLY - No vehicles


SCOTT PARK FINISH ~ 8:00PM Cutoff

Mile 100 Elevation 3970'   


VOLUNTEERING

Our Aid Stations are completely run by volunteers and we could not put this race on without them. It has been said volunteering for Bighorn is life-changing. Our volunteers have fun and often make this a family volunteering experience. If you are interested in volunteering, click the button below.

Find out more

100M Medical information

  

· It is important for the participant to recognize the potential physical and mental stresses, which may evolve from participation in this race. Runners may be subject to extreme temperatures heat and cold, resulting in hypothermia and/ or heat stroke. Other ailments could include but are not limited to  kidney failure, seizures, low blood sugar, disorientation, injury, falling rocks or trees, wild animal or reptile attack, or even death from their participation in this event. 


· Medical personnel will be dispersed along the course. Verbal medical evaluations will take place for every 100 mile  participant at Dry Fork, Sally’s Footbridge, and Jaws. If medical personnel have concerns for your health and safety after verbally accessing you, they may ask to attend to you further. The goal of Medical personnel and all aid station volunteers is to get you safely to the finish line. They will help you make any decisions that involve your health and safety in completing the race. Keep in mind, the safety of our volunteers is very important to us and a decision to continue resulting in having to be rescued could put those volunteers in danger while rescuing you. 


· Adequate pre-race conditioning is mandatory and a participant should not run the race if they have not been able to prepare adequately to run safely. Hypothermia and heat illness will be significant risks in this race. Both can cause nausea, dizziness, and mental confusion. Impending heat stroke may be signaled by a decrease in sweating and goose bumps and can progress to collapse in a short period of time. The diagnosis of why a runner is nauseated requires careful consideration of temperature conditions at the time of illness, altitude, and race pace to arrive at corrective measures. Proper race pace is crucial. A runner must be careful not to exceed their own physiologic thresholds, which may vary according to temperature, altitude, terrain, and conditioning. High altitudes above 7000 feet coupled with strenuous exertion may produce various degrees of altitude sickness. This can lead to severe lung and brain swelling which without treatment could even lead to death. Treatment for altitude sickness is rest and descending to a lower altitude. Altitude sickness can be prevented with altitude acclimation, proper fluid and electrolyte intake, and the right pace for the athlete.


· Injuries from falling both on even or rough trail, hazards of running in possible snow conditions, falling rock or trees, and injuries related to adverse encounters with wildlife exist for the participant taking part in this race. Vehicle hazards, common fatigue, getting lost, and being far from medical help, treatment, and evacuation are just some of the other risks associated with participating in the Bighorn Trail 100. It is crucial that the runner has physically prepared himself/herself to safely participate in this event, stays mentally alert, stays adequately hydrated and nourished during the event, and is mentally prepared to withdraw at an appropriate time if he/she can not safely continue. 


Dryfork Area

Dryfork Area

100M CREW information

 

Crew access locations during the event include the starting point, Camp Creek Ridge intersection with Freeze Out Road (out only), Dry Fork Ridge Aid Station (out and in), Sally's Footbridge Aid Station (out and in), Little Bighorn Trail course intersection with Devil’s Canyon Road (out and in), Jaws Trailhead, and from the Tongue River Canyon Trailhead to the Finish . Detailed crew access directions will be available at the packet pick-up and rules regarding crew access at specific crew access locations will be reiterated. Crew access from the Tongue River Canyon Trailhead (94.75 miles) on Tongue River Canyon Road to the Finish will only be by foot or bike because of congestion on Tongue River Canyon road. Crew access to Dry Fork Ridge Aid Station (in) on Saturday will have parking restrictions.


Crew access to Sally's Footbridge Aid Station (out and in) is difficult due to the distance to the mouth of the Little Bighorn River Canyon and the fact that there is limited parking in the canyon. Crews should expect at least 25 minutes to navigate the 2 mile section of rocky, rough, primitive road into the canyon to the designated crew parking area. From that crew parking area, crews will need to walk ¾ miles to access Sally's Footbridge Aid Station. A high clearance vehicle is recommended for accessing Sally's Footbridge Aid Station and carpooling is suggested. It will take a crew approximately 2.5 hours, at a minimum, to go between Dry Fork Ridge Aid Station and the Footbridge Aid Station both out and in.


Approximate travel times that should be considered by entrants and their crews assuming good road conditions and no construction delays are as follows:

  • Start to Dryfork 1.5 hrs by car
  • Dry Fork Ridge to Sally's Footbridge Aid Station (30 miles) 2.5 hours by car + ¾ mile shuttle/walk  (good clearance auto needed last 2 miles)
  • Sally's Footbridge to Course x’ing of Devil’s Cyn Road (47 miles) 2.5 hours by car +¾ mile shuttle/walk out
  • Devil’s Cyn Rd x’ing to Jaws Trailhead (48 miles) 10 min by car
  • Jaws Trailhead to Devil’s Cyn Rd x’ing (49 miles) 10 min by car + 1/3 mile walk out
  • Devil’s Cyn Rd x’ing to Footbridge Aid Station (66 miles)  2.5 hours by car + ¾ mile shuttle/walk in
  • Sally's Footbridge to Dry Fork Ridge Aid Station (82.5 miles) 2.5 hours by car + ¾ mile shuttle/walk out
  • Dry Fork Ridge to Scott Park Finish Area (100 miles) 1.25 hours by car


Crews may provide aid to their runner at any point on the course after the Tongue River Canyon Trailhead (94.75 miles) to the finish as long as they have not driven on the Tongue River Canyon Road to access their runner. They may walk, run, or bike on the Tongue River Canyon Road to access their runner and must return via the same manner. Crew or family who drive a vehicle on Tongue River Canyon Road will subject their runner to disqualification.


CREW DIRECTIONS

  1. To the 100 mile start: The entrance to the Tongue River Canyon Road is on the northeast side of the Tongue River Bridge on Hwy 14 as a driver enters Dayton heading west from Ranchester. Take the Tongue River Canyon Road proceeding upstream on the northeast side of the Tongue River. Go left at a junction approximately 2.5 miles from Dayton and proceed on the Tongue River Canyon Road approximately 1 mile further to the Amsden Fishing Access area in the Tongue River Canyon (a primitive outhouse will be noted on your right). The start will occur on the Tongue River Canyon Road by the big cottonwood tree where the road turns toward the north wall of Tongue River Canyon at the west end of the fishing access area (approximately 1.25 miles from the Tongue River Canyon Trailhead).
  2. To the Head of the Dry Fork (Dry Fork Ridge): Take Hwy 14 from Dayton and proceed up the mountain to Burgess Junction. At Burgess Junction, take a right on Forest Service Road #15 (Dayton Gulch Road) proceeding past Burgess Ranger Station and eventually crossing Fools Creek at approximately 5 miles. Shortly after crossing Fools Creek, take a right on Forest Service Road #168 (Freeze Out Road) and proceed approximately 5 miles to the head of the Dry Fork Aid Station which is located at the intersection of Forest Service Road #149 and Forest Service Road # 168 (Freeze Out Road).
  3. To Sally's Footbridge Aid Station in the Little Bighorn River Canyon: From Dayton, cross the Tongue River Bridge at the eastern aspect of town and turn north on Wyoming Hwy 343 proceeding 5.2 miles to the intersection of Wyoming Hwy 345 (old US Hwy 87). Turn left on Wyoming Hwy 345 and proceed past Parkman, WY, going into Montana at 5.9 miles where you enter the Crow Indian Reservation and continue on this highway until you reach the Littlehorn Road just south of Wyola, MT, at 15 miles. Turn left on the Littlehorn Road, cross the railroad tracks and proceed west on the Littlehorn Road toward the Bighorn Mountains crossing the Little Bighorn River at 9.7 miles, having the pavement change to gravel at 10.5 miles, crossing the Little Bighorn River at 12 miles, and encountering a cattle guard at a 4-way junction at 15.85 miles. The 4-way junction has a sign by the cattle guard, erected by the Wyoming Game and Fish Dept, which is brown and states the road going past the cattle guard provides public access through private lands, please stay on established roads. Proceed through the cattle guard, taking this primitive road into the mouth of the Little Bighorn River Canyon. You will ford a creek at 0.45 miles, ford a second creek at 0.6 miles, reenter Wyoming at a primitive sign noting that you are at 45 degrees Latitude, and cross the Little Bighorn River on a bridge at 1.5 miles. Continue on the northern side of the Little Bighorn River where you will encounter an area where we wish crews to park at approximately 2.5 miles. Be careful not to block the road when parking and do not block the private bridge crossing to the cabins on the south side of the Little Bighorn River when parking in this area. Park well off the road; but be careful you don’t high center your vehicle on scattered rocks in this parking area. Parking is very limited further up the canyon and is reserved for aid station/emergency access vehicles. After parking, proceed by foot approximately ¾ mile distance from the designated parking area up the canyon on the primitive road to reach the Footbridge Aid Station. You will go past the Wyoming Game & Fish Patrol Cabin area shortly before you encounter the Footbridge Aid Station.
  4. To Devil’s Canyon Road Crossing: Take Hwy 14 from Dayton and proceed up the mountain to Burgess Junction. Take Hwy 14A from Burgess Junction towards Lovell approximately 18.7 miles and turn right on Devil’s Canyon Road (previously known as Sheep Mountain Road). Go north approximately 2 to 2.5 miles to where the 100 mile course crosses Devil’s Canyon Road.
  5. To Jaws Trailhead: Take Hwy 14 from Dayton and proceed up the mountain to Burgess Junction. Take Hwy 14A from Burgess Junction towards Lovell for approximately 20.7 miles to turn right on Forest Service Road #13 which is just prior to the road going to the Medicine Wheel and is just prior to Hwy 14A starting to descend off the mountain. Go on Forest Service Road #13 in a northerly direction proceeding past Porcupine Campground on your left at approximately 1.9 miles. Cross over Porcupine Creek and continue driving past the entrance to the Porcupine Ranger Station (do not drive into the entrance of Porcupine Ranger Station).  Proceed left up the hill past the entrance to Porcupine Ranger Station for about ¼ mile where you will turn left into the parking lot for Jaws Trailhead at approximately 2.5 miles.  Park in the designated areas for crew in Jaws Trailhead or as otherwise directed keeping the entrance to Jaws Trailhead clear for traffic and runners.

Near JAWS

Near JAWS

100M Pacer information

 

A pacer is any individual who accompanies a runner for a distance greater than 100 yards


  • Pacers are only allowed to accompany 100M runners. There are no pacers allowed for the 52M, 32M or 18M distances.
  • One pacer at a time may accompany each 100M runner starting from Sally's Footbridge Outbound (mile 30), Jaws Trailhead (Turn-around, mile 52), Sally's Footbridge Inbound (mile 66), and Dry Fork Ridge Inbound (mile 82.5).An entrant over the age of 60 or with special medical conditions (MUST be cleared by the Race Director in advance by April 30th) may be paced from the start.
  • Vehicles are not allowed on Tongue River Canyon Road from the Trailhead to the finish at Scott Park. We encourage you to meet your runner by either walking, running, or biking on the road. A crew runner may accompany the competitor on the final course section into the park, but must only do so on foot, or on a bike.
    Each pacer must sign a waiver release prior to pacing a runner. These will be available at packet pick-up, the pre-race briefing and from the aid station captain at Sally's Footbridge, Jaws trailhead and Dry Fork Ridge. Crew/Pacer vehicles on Tongue River Road subject their runner to disqualification.
  • Pacers must be at least 18 years of age. Specific exceptions to the age requirement may be made in advance of the race by the Race Director with a guardian’s signature.
  • Each pacer must wear the official pacer bib of the entrant he/she is pacing. One pacer bib is provided per entrant at race check in. The official pacer number must be transferred between pacers if duties for one runner are to be shared. If a pacer becomes unable to continue the race, the official pacer number must be given to the runner, so that subsequent pacers will be properly identified. Pacer bibs are available at packet-pickup or from the aid station captains at Sally's Footbridge, Jaws Trailhead and Dry Fork Ridge.
  • Each pacer must clearly identify themselves when passing through checkpoints so that race personnel know exactly who is on the trail and where. Pacers must stay with their runners at all times, except in the case of emergency. If the runner withdraws from the race, and the pacer wishes to continue, the pacer must remain at the Aid Station until another runner enters the Aid Station and requests the services of a pacer. The pacer may not continue on without an official race participant.
  • Pacers must enter (CHECK IN) and leave (CHECK OUT) each Aid Station WITH their runners. Runners are to carry their own supplies and pacers are to carry their own supplies. No mechanical or physical assistance may be given by the pacer to the runner at any time.

Father with PACER son finishing the 100 mile  race

Father with PACER son finishing the 100 mile race