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Built on bad decisions in Boulder, CO.

Sinks Canyon Trail Races 18K

Basic Listing
  1. Lander Running Club
  2. 2026 Edition

Technical singletrack and Wind River panoramas on an 18K mountain loop

Explore the Course
Interactive map with aid stations, elevation & weather
DirectionsExplore
Registration OpensOctober 13, 2025
DeadlineJune 09, 2026
This event took place on June 13, 2026

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Course map for Sinks Canyon Trail Races 50K

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All trail races in Wyoming→
June 13, 2026
Saturday 8:00am MDT start
Lander, WY
United States
11.2 miles
Loop Course
2,000 ft
Elevation Gain
Open Registration
No lottery
No Service Requirement
Does not require trail or volunteer work
No Qualifier
No qualifier race required
Challenging
Some ultra experience recommended
Links
WebsiteInstagramFacebook
2016
Established

What Makes It Great

A scenic mountain loop through Sinks Canyon and the surrounding forest, offering 2,000 feet of climbing on 80% technical singletrack with sweeping views and wildflower-filled meadows. The course runs along the Middle Fork of the Popo Agie River, climbs the Aspen Grade trail, traverses the Brewer's Trail past Fossil Hill, and swoops back down into the canyon. One aid station at Fossil Hill (mile 5.5) supports runners.

Difficulty

Intermediate
4/10

Some ultra experience recommended

Steep Climbing
Technical Terrain
High Altitude

Sinks Canyon Trail Races 18K

Lander, WY, United StatesJune 13, 2026

June 13, 2026

Sinks Canyon Trail Races 18K is a loop trail race in Lander, WY, United States, held on June 13, 2026. The course covers 11.2 miles and climbs 2,000 ft.

Course map for Sinks Canyon Trail Races 18K
DistDistance11.2 mi
GainElevation Gain2,000 ft
Steep ClimbingHigh Altitude

Entry Timeline

Registration OpensOctober 13, 2025
Registration DeadlineJune 09, 2026
Race DayJune 13, 2026

Lottery

This event uses open registration - no lottery entry required.

Qualifier

This event does not require a qualifier for entry.

Service Requirement

This race does not have a service requirement for entry.

Terrain

Surface Types
Singletrack80%
Doubletrack13%
Pavement7%
11.2 mi
Distance
Loop
Route
7,648 ft
Average Elevation
2,000 ft
Total Ascent
2,220 ft
Total Descent
8,530 ft
High Point
6,772 ft
Low Point
Explore Course
Course map for Sinks Canyon Trail Races 18K
Launch Course Explorer

Aid Stations & Cutoffs

LocationMileElevationCutoffCrew
Start / Finish
Start
0.07,133 ft—
Fossil Hill AS
Aid Station
5.58,448 ft—
Crew
Start / Finish
Finish
11.27,133 ft—

Aid station details for this race are still being filled in. Cutoffs and access rules come from the race’s own published information and can change — check the official race details before planning around them.

Sign in for race-day weather at every station, points of interest, segment-by-segment analysis, pacing, and to save this race to your calendar.

Dogs Allowed

Dogs may not pace runners on the trail. Dogs may be leashed with spectators/crew and must stay a minimum of 30 meters from aid station and start/finish tents.

On-Site Camping Available

Free dispersed camping at Hugh Otte Campground, ¼ mile from the start/finish. Additional paid campsites and yurts available in Sinks Canyon at Shoshone National Forest and Sinks Canyon State Park campgrounds.

Crew Access Points

Pacer Rules

No Pacers Allowed

Crew Rules

  • Crew access at Fossil Hill Aid Station (Mile 5.5): drive up Louis Lake Road (The Loop Road) 4.5 miles to the parking area at the base of Fossil Hill.

Gear Rules

Trekking poles allowed

Required Gear

  • Hydration bottle (½ liter minimum) (Cupless race — no cups provided at aid stations.)

Recommended Gear

No recommended gear specified

Race reports from other Sinks Canyon Trail Races events

Sinks Canyon 50K Race ReviewSinks Canyon Trail Races 50K
By 50-50-50 Project • 2024

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Registration closed