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Built on bad decisions in Boulder, CO.

Sinks Canyon Trail Races 18K

Draft Listing
  1. Lander Running Club
  2. 2026 Edition

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

Directions
Registration OpensOctober 13, 2025
DeadlineJune 09, 2026
This event took place on June 13, 2026

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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
2,240 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
Course map for Sinks Canyon Trail Races 18K
DistDistance11.2 mi
GainElevation Gain2,240 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
2,240 ft
Total Ascent
2,220 ft
Total Descent
8,530 ft
High Point
6,772 ft
Low Point
Course map
Launch Course Explorer

Aid Stations

LocationMileElevation
Start/Finish
Start
10.67,133 ft
Fossil Hill AS
Aid Station
5.18,448 ft

Sign in to see cutoffs, crew access, drop bags, and services for every aid station.

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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Register•June 13, 2026