Slippery When Wet, McCoy Flats, Vernal, Utah

Slippery When Wet

Slippery when wet is a technical 6.5 mile loop in the McCoy flats trail system. There are loose rocks, off camber turns, rocky ascents, rocky descents and a few good rock drops. I would recommend this ride for skilled intermediates, you can always walk the features you don't feel comfortable riding.

Overall there is 570 feet of elevation gain. Some of the climbs are steep and you'll need to work your weight onto the back wheel in order to make it up. This loop is one of the best trails in the McCoy system. It starts at the corral, you cruise west down to a split where you will take a right. The rocky stuff will begin there. You meander up and down along the back side of a mesa eventually climbing the mesa for a good descent.

Beware the corners on the descent they have loose rocks on them and your tires will move around a bit. I recommend running tubeless with low pressure in order to maximize grip, however you still need to run enough air to protect your rims on the slickrock.


You can camp right at the McCoy Flats Corral. There is a restroom but no water or power.

Getting There

Vernal is located right on highway 40 which runs from east to west from Denver, CO to Salt Lake City, UT.

You could also fly into Salt Lake City, UT which has an international airport and then rent a car to drive to Vernal. (Approx 2.5 hrs.) Keep in mind there are no bike rentals in Vernal so you will need to bring your bike or rent one in Salt Lake City.


There are several hotels in Vernal I would recommend one of the 2 Marriots, Comfort Inn, Landmark Inn, and Ledgestone Inn. I have personally stayed at the Marriot, and the Landmark. Both hotels were great!

Bike Service/Shop

The local bike shop is Altitude Cycle. Altitude has always been great to me. They do repairs, maintenance, have great prices on bikes and often have sales. You can pickup whatever you need there and the staff is great. Let them know Kyle sent you!

Trail map

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9.605 km / 5.969 mi

Total Distance

354 m / 1,161 ft

Total Ascent

355 m / 1,164 ft

Total Descent

1,621 m / 5,318 ft

Highest Point

Ride type:
Mountain biking
Road riding
Kid friendly
Rail Trail
Difficulty: Advanced (Black)
Ride Duration: 1-2 hrs
Fitness Level: Medium
MTB Segment: cross country
Shared Bike Path - Paved
Shared Bike Path - Dirt
On-Road Bike Lane
Off-Road - Fire Trail
Off-Road - Rail Trail
Off-Road - Single Track
Off-Road - Downhill
Trail Signage: Good
Mobile Coverage: Limited
Estimated Distance: 10.0
Elevation Gain: 170
First Aid
Bike hire
Bike servicing
Accessible by bike
Accessible by car
Accessible by public transport
Accessible by shuttle / uber
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