WYO131
The Ultimate Gravel Gauntlet
In our opinion? This is the best damn gravel course ever built. A relentless, breathtaking, and absolutely unforgiving journey across Wyoming’s most rugged and awe-inspiring landscapes.
From the endless sagebrush seas of the Red Desert to the subalpine lakes of the Wind River Range, this course will push you to your absolute limit—and then demand more. Rough roads. Brutal climbs. Cutoff times. Some won’t finish. This isn’t for beginners; it’s for those who live for the suffer and thrive on the grind.
But for those who endure? The rewards are legendary. Towering vistas, remote backcountry terrain few ever witness, and the sheer satisfaction of conquering one of the toughest gravel races out there. Expect everything from fast-rolling gravel to chunky, soul-crushing sections, plus plenty of Wyoming wildlife watching your every move.
Strategically placed aid stations will be your lifeline, stocked with hydration, nutrition, and mechanical support—but don’t get too comfortable. Cutoffs are real, and the clock won’t wait. Crew support is limited to designated points, so you’ll need to rely on your own grit to make it through.
This is gravel racing at its rawest, toughest, and most rewarding. Gear up, train hard, and prepare for the ride of a lifetime. You in?
Race it, ride it, or tour it.
If there’s going to be pavement, it may as well be on a wicked fast descent on the last 10 miles of course.
131-Mile Route
131 mi Distance
10,000 ft Elevation Gain
5 Aid Stations
8 hours 11 minutes: Course Record
COURSES AND AID STATION LOCATIONS ARE SUBJECT TO CHANGE PENDING PERMITTING AND WEATHER
*We have the right to change the start times, course distance and routes depending on conditions at the time of the race.
ROUTE IS NOT MARKED. YOU ARE RESPONSIBLE FOR YOUR OWN NAVIGATION
Course Description
The start is at Lander City Park at 405 Fremont St.
Begin by riding Hwy 131 towards Sinks Canyon to Mortimer Lane. From Mortimer, we will briefly head south on Hwy 287 before turning left onto Lyons Valley Road. Enjoy the last of the tarmac, until we turn right onto the gravel at Coal Mine Road and follow it all the way to Hudson, WY. Just out of town you’ll hit Aid Station 1. This aid station will have water, drink mix and a few snacks.
Continue on to the next fully stocked Aid Station #2 at mile 36.5 (9 Mile Reservoir). Crew members are NOT ALLOWED to meet riders at this aid station. This is to avoid traffic passing the racers. Please allow our aid station to provide your riders with snacks and hydration.
Next is the gravel Hudson-Atlantic City Road, BLM #2302. You will gradually climb through the Sweetwater Hills/Sand Draw region to Beaver Rim, where you will climb quite steeply. At the top look back at the amazing view before you head West on gently rolling terrain.
Cross the highway and continue on the Hudson-Atlantic City gravel road. Immediately across the hwy is Aid Station #3 at mile 60. Crew members may meet you at this location. This is a possible bail-point if you need it. This is traditionally a rough patch of road. Extremely wash boarded and winds usually pick up. Keep your head down and just knock this section out, its about to get really good. This road will curve west then northwest, and take you to the Atlantic City Grubsteak which is Aid Station #4 at Mile 90. Take some time to appreciate this historic old gold mining town, then slather on the chamois butter, grab a burger, and push on! This is your last opportunity to bail and hitch a ride on the Wind River Shuttle, but we’d suggest taking a long rest and sticking to it. We really love the next part of the course.
Head northwest towards Hwy 28 and briefly ride northeast on the highway. Turn left (north) onto the gravel Louis Lake Road (in the parking lot), which you'll follow into the Wind River Mountains. Aid Station #5 at Mile 103 will be at the Louis Lake Lodge just after a fast, mile long descent and crossing the bridge over Louis Creek. Crew members are NOT ALLOWED to meet riders at this aid station. This is to reduce as much traffic as possible on this narrow road.
Continue uphill, enjoying the beautiful views into the Wind River Range as you question your decision to enter this race in the first place. You'll reach the high point of 9,576 ft at mile 109 and begin an amazing 22 mile decent back to Lander. At mile 116, ride onto pavement and descend the switchbacks into Sinks Canyon, then follow the Highway 131 all the way back to the finish at Lander City Park.
There will be beer and food waiting for you. Congrats you did it!
Proper preparation is key, and we recommend thorough training and familiarization with the terrain.
Aid Stations
Approved Aid Stations are the only time when your crew, or any non-participant, can assist racers.
NOTE: ALL PARTICIPANTS MUST BE LEAVING THE CHECK POINTS BY THE CUT OFF TIME OR THEY WILL BE PICKED UP BY THE SWEEPER AND MAY HAVE TO WAIT UNTIL A COURSE MARSHALL IS AVAILBLE TO TAKE THEM BACK TO TOWN.
Mile 20- Aid Station
Sponsored by Gannett Peak Sports and Hudson Heroes
Hudson, WY. This is a fully stocked aid station. Water and drink mix will be available. Crew members can meet you at this location. Riders may drop off lights/jackets other gear etc. Bathroom available.
8am Cut-off time
Mile 36.5- Aid Station
Sponsored by Wind River Physical Therapy
9 Mile Reservoir. Fully stocked aid station. Crew members are NOT ALLOWED to meet riders at this aid station. This is to avoid traffic passing the racers. Please allow our aid station to provide your riders with snacks and hydration. No bathrooms.
Mile 60- Aid Station
Sponsored by Lander Triathlon & Main St Dental
Hudson-Atlantic City gravel road. Fully stocked aid station. Crew members can meet you at this location. Bathroom available.
12 pm Cut-off time
***BAIL POINT***
NEED TO BAIL? This location iS conveinent for your support team to come grab you.
Mile 90- Aid Station
Sponsored by Fremont Orthopaedics
Atlantic City Grubsteak. Fully stocked aid station. You will also have access to the Grubsteak Bar/Restaurant. Slather on the chamois butter and push on! Crew members can meet you at this location. Bathroom available.
4 pm Cut-off time (riders must be leaving this aid station by 4pm). If a rider is not ready to leave this station by 4pm they will be asked to abandon the race.
4 pm Shuttle Pick-up
***BAIL POINT***
NEED TO BAIL? This location iS conveinent for your support team to come grab you. There is also a SHuttle pick up at 4pm
Mile 103- Aid Station
Sponsored by the Lander Running Club
Louis Lake Lodge. Fully stocked aid station. Water, drink mix and snacks will be provided.
Crew members are NOT allowed at this location.
5:45 pm Cut-off time
Mandatory Carry List:
Each participant must carry with them (on their body, or on their bike) every item on this list. You will not be allowed to start the race without these supplies!
Cycling computer/GPS
Helmet
Bike Light (early morning start is dark!)
A cell phone to contact the “outside world” should you need help. Service is limited.
2-3 Water Bottles and (a hydration pack strongly recommended)
Food-energy bars, gels, nuts, etc..
At least two spare inner tubes (patch kit recommended)
Air pump or inflation system.
ADDITIONAL Supplies You Should SERIOUSLY Consider!
SPOT tracker or Garmin inReach
A GPS system to communicate your exact location to support or rescue personnel in the event of an emergency.
Small rucksack / hydration pack
Waterproof / windproof jacket
Extra thermal top or warm layer to wear if stopped
Tire levers
Chain tool
Allen wrench set
Spoke wrench
Butt butter
Chain lube!!!
Cash, debit card or credit card. (To purchase food, water, supplies.)
Handlebar Cue Sheet holder
Bail Points
Need to cut your adventure short? Wind River Shuttle will pick up riders needing to cut their rides short at Mile 90.