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Monitor Merrimac



5.5 mile 8.9 kilometer loop
85% Singletrack


Ascent: 628' 191 m
Descent: -627' -191 m
High: 5,005' 1,525 m
Low: 4,496' 1,370 m


Avg Grade: 4% (2°)
Max Grade: 27% (15°)


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A great beginner/intermediate introduction to Moab slickrock.

Nick Wilder

Electric Mountain Bikes Unknown

Features -none-


Don't confuse this with the old jeep road that goes by the same name. This trail is mostly singletrack and slickrock and designed for intermediate mountain bikers.

This is a great introduction to Moab riding: the climbs are very gentle, the copious slickrock is smooth and not as ledgy as most areas, and the sand traps are short and easy to walk.


Start at the enormous parking lot ringed with red boulders (there is camping here, but there are better spots on the nearby roads). Follow the main dirt road south (the same one you used to get here) just a short ways and you will come to an intersection with signs indicating "Mill Road" and "Dino Trail" to the right. You will exit this way, so for now, stay left on the main road.

In another tenth of a mile, you'll come to a sign saying "Halfway Stage Station" to the right. Take this right turn on a very sandy, smaller road. You might have to walk it 50 yards. You are now at the historic Halfway Stage House, and the beginning of the singletrack, through a gate straight ahead.

The singletrack starts with a few short sandy spots but quickly changes to slickrock. You climb very gently up remarkably smooth slickrock following white painted markers. Once you reach the end of the enormous bluff you have been hugging to the right, there is a shortcut trail branching to the right. This cuts off the most fun slickrock, so the shortcut not recommended.

Continue riding an enormous expanse of easy slickrock around another huge bluff, and eventually turn back north. You now begin a gradual descent of the mellow slickrock and you can go quite fast. It's very smooth with no surprises, but rock is harder than dirt, so watch it.

The slickrock ends where you intersect with an old jeep road that is also called Monitor Merrimac. Go right and you're soon back on singletrack following a stream bed wash. After a mile or so, you pop out at the end of a road and parking area.

Put down your bike for a minute and take the 150 yard, signposted Dinosaur trail. There really are purple-ish dinosaur fossils and petrified wood (including a cool 2 foot diameter tree trunk!) that you can even touch.

Hop back on your bike for the dirt road ride back to the parking lot, a couple tenths of a mile away.

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We need help with the following missing trail information:

Family Friendly, ADA Accessible, Need to Know, Dogs Allowed, Features, Electic Mountain Bikes Allowed, History & Background


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Apr 27, 2020
Mar 10, 2020
Evergreennevan Glenn
Nov 30, 2019
Jamie Pfahl
due to lots of recent moisture, the sand was maybe a little more manageable, but this wasn't my favorite trail, when there are others not that far…
Oct 18, 2019
Zac Killian
Windy Friday afternoon. Got the dog with us. 5.5mi — 12h 00m
Sep 20, 2019
Joel Maier
Super sandy on west side. Should go up east and down east
Jun 19, 2019
Saeed Shihab
May 25, 2019
Justin Conrad
Moderate up hill on slickrock with a great slickrock down hill on the other side. The out is in the bottom of mill creek with lots of muddy crossings
May 10, 2019
Katelin E

Trail Ratings

  3.6 from 68 votes


  3.6 from 68 votes
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in Utah


301 Views Last Month
16,732 Since May 1, 2013



Beginning of the slickrock section
May 1, 2013 near Moab, UT
And this is the LESS scenic direction...
May 1, 2013 near Moab, UT
Surprisingly green in May
May 1, 2013 near Moab, UT
smooooth slickrock!
May 1, 2013 near Moab, UT
riding counter clockwise
Nov 13, 2017 near Moab, UT
Take a right here, and probably walk the short sandy bit.
May 1, 2013 near Moab, UT

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