The road to your own record
Picture the course in advance
and find the pace that fits you.

The city you want to run becomes your next trip.
THE DREAM
A trail race held in the rugged terrain of western Wyoming since 2004.
Events include the 31K and 50K.
Picture the course in advance
and find the pace that fits you.
Streets lined with cheers, runners all around.
You'll be part of that scene.
Take it slow with the finish still in you,
and meet the city all over again.
From the joy of finishing to the tough moments — read what runners wrote themselves.
“Overall, I was happy with my performance. I came in at 7:40.”At El Vaquero Loco 50km, the runner enjoyed mountain trails with lakes and waterfalls. A wrong turn added roughly 2 miles, but they returned to the course and finished.
“I was pleased how good my body felt, and how I was able to run through my foot pain.”At El Vaquero Loco 50km, foot pain initially made the runner hesitant to race, but they enjoyed the mountains and misty scenery. They accelerated on the final descent to finish second.
We translated a short line from each public race report and summarized the experience. Finish times are as stated by the author, and past editions may differ from this year's weather and operations.
Preview the course and read what runners who went before you wrote.
Kevin Rowe · Full recap
This may be from a past edition. Check the organizer for this year's course and operations.
YOUR ENTRY
Here are the ways to enter and what each requires.
Check the organizer's page for whether entries are open.
Entries open on RunSignup from 8:00 am (MDT) on 1 October 2026.
Organizer's pageEntries open on RunSignup from 8:00 am (MDT) on 1 October 2026.
Organizer's pageRACE WEEK
Know the course and time limit, and race day comes into focus.
| Event | Start |
|---|---|
| Ultra50km | 06:00 |
| El Vaquero Loco 31k31km | 07:30 |
We have not confirmed the start line coordinates yet. The map shows the host city.
El Vaquero Loco is a trail race in Afton, Wyoming, that has been held since 2004.
It began as a community event supporting the Star Valley High School track and cross-country teams.
True to its 'old school' character, the race is known for emphasizing rugged terrain and an authentic trail-running experience rather than flashy marketing.
The race offers two divisions, 50K and 31K, with a distinctive course setup.
The 50K starts and finishes at Cottonwood Lake, while the 31K starts at Canyon View Park in downtown Afton and reaches finish at Cottonwood Lake —
in other words, the two divisions have different start locations and share only finish.
Course mainly follows rugged mountain singletrack in the Wyoming wilderness,
with plenty of technical terrain that makes it popular with experienced trail runners.
Held for more than 20 years,
the race is notable for maintaining its charitable focus of supporting local school athletics rather than pursuing unchecked growth.
It has established itself as a signature summer trail race for the Star Valley area at the foot of the Rockies.
Not yet confirmed in the official race guide
Pick up your bib, check your wave.
So on race morning, you can just run.
50k: Cottonwood Lake (Cottonwood Campground), southeast of Afton, WY. 31k: Canyon View Park, Afton, WY.
No public transit; car access only, remote Star Valley/Wyoming wilderness venue. Community race benefiting Star Valley High School track/cross country.
No public transit, car access only. The official page currently displays the 2026 edition (Aug 1, 2026); the 2027-07-31 date follows the race's annual early-August Saturday pattern.
Cottonwood Lake for both the 50k and 31k
31k is point-to-point (Canyon View Park to Cottonwood Lake); 50k is out-and-back/loop from and to Cottonwood Lake.
No official shuttle service mentioned; the 31k's point-to-point layout implies participants need to arrange their own transport back or leave a second vehicle, not stated explicitly.
No dedicated transit card system for this rural Afton, WY venue; standard car access applies. There is no public transit in this area, so a personal vehicle is required to reach the course, with cash or card accepted for any local fuel/parking needs.
Your start time, fuel and bag drop.
Know them ahead and the run feels easier.
The 50K starts and finishes at Cottonwood Lake, while the 31K starts in downtown Afton at Canyon View Park and finishes at Cottonwood Lake.
Be sure to confirm the start location for your event in advance.
Because of this setup, it is best to plan your vehicle or shuttle arrangements separately for each distance.
The course is rough and technical, consisting mainly of singletrack, so trail shoes and trekking poles are worth considering.
As this is high-altitude mountain terrain, allow time for acclimatization and prepare for strong sun exposure.
For the entry fee, exact cutoff time and bib-pickup location, check the latest notice on the annual RunSignUp registration page.
Times are local to Afton. Check the latest official information before the race.
STAY A LITTLE
From a hotel that makes race morning easy,
to the meals and views you'll enjoy with the medal on.
Hotel · 3.8km
View on Booking.com$171
View on GetYourGuideHotel · 781m
View on Booking.com$406
View on KlookAccommodation · 113m
View on Booking.comAccommodation · 1.4km
View on Booking.comAccommodation · 113m
View on Booking.comDistances are straight-line from the start.
Check real travel times and booking terms with each hotel.
Hotel · 3.8km
View on Booking.comHotel · 781m
View on Booking.comAccommodation · 113m
View on Booking.comAccommodation · 1.4km
View on Booking.comAccommodation · 113m
View on Booking.comAccommodation · 1.4km
View on Booking.comAccommodation · 1.1km
View on Booking.comSwipe sideways to see more hotels.
Rest a little, wander a little.
Pick what suits you and whoever you're with.
$171
View on GetYourGuide$406
View on KlookOnce saved, you can open this page without an internet connection
Be the first runner
Leave this room's first post
It takes place on Sat, August 7, 2027 in Afton, WY, United States.
The main event costs $150.
Ultra.
The race starts at 06:00.
Cottonwood Lake (50K) / Canyon View Park, Afton (31K), WY.
Cottonwood Lake, WY.