View of the canyon wall, about a mile up Casto Canyon. Photos by Bruce Argyle, J...
View of the canyon wall, about a mile up Casto Canyon. Photos by Bruce Argyle, July 17, 2001.
Casto Canyon Trail

Casto Canyon is like a miniature Bryce Canyon. Spires of orange rock rise up the canyon walls, among pine and cedar. The main trail is an ATV path that's easy to ride. The many creek drips and turns will hold your interest while you gawk at the awesome spectacle of rock. And if you're looking for tougher riding, there's some of that at the top -- if you want.

The lower 3.7 miles of Casto Canyon is an easy ride on an ATV trail. But I don't recommend it for tiny tykes, because small wheels and lighter bodies will hang up on some of the large rocks in the many creek crossings.

Beginning riders will turn back where the singletrack forks off of the ATV trail, for a total ride of 7.4 miles. Almost all of the eye-popping rock formations are on the lower section anyway. Vertical climb will be 600 feet for this version, but the elevation gain is slow and almost imperceptible.

Jackie pauses to cool her feet and grab a drink of water. The eroded creek walls...
Jackie pauses to cool her feet and grab a drink of water. The eroded creek walls are the result of flash flooding two nights before our ride.
Highway 12 in Red Canyon.
Highway 12 in Red Canyon.
The trail clears of snow in mid May. While in the area, riders can also enjoy the nearby Losee and Cassidy trails, the Panguitch race loop, and famous Thunder Mountain. There's a paved trail up Red Canyon -- and on to Bryce Canyon -- that's very popular.
Trailhead
Parking at Casto Canyon.
Parking at Casto Canyon.
Casto Canyon trailhead
From US-89, drive 2.9 miles east on U-12 (towards Bryce Canyon National Park). Turn left on the gravel road marked for Casto Canyon. Drive 3 miles. Parking is on your left. The trail begins across the road from the primitive parking lot. The trailhead has a toilet but no other services.
Looking northeast from the trailhead.
Looking northeast from the trailhead.
You can also connect to upper Casto Canyon via a connecting trail at the top of Losee Canyon. You can arrive by climbing Losee, or by taking the Cassidy trail from Highway 12.
The Casto Canyon trail
Getting started!
Getting started!
Casto Canyon has a small trailhead at mile 3 from Highway 12. Parking is on the left side of the road, and the trail is on the right. Pedal uphill to a metal gate and a ride-over cattleguard.
This trail sees a lot of ATV and horse traffic. Over the years, a couple of spots have been eroded and torn up to expose some rock. But overall it's pretty plush, and not as loose and dusty as you might expect.

The trail begins in juniper and pinion forest, with long-leaf pine taking over in the upper elevations.

Lots of views.
Lots of views.
Bruce rides the singletrack in upper       Casto Canyon.   Photo done with the camera's timer. (This was before GoPros and digital cams.)
Bruce rides the singletrack in upper Casto Canyon. Photo done with the camera's timer. (This was before GoPros and digital cams.)

You'll ride into the creek over 20 times. (The creek may dry up before it reaches the parking area.) Plan on dust settling on a wet chain. To prevent chain suck on the steeps that follow, I suggest you wash your chain before you exit the creek the last time (either at the trail fork if you're heading left, or at mile 5.4 on the singletrack). Packing a tiny bottle of chain-lube with you can't hurt.

The orange rocks on the walls of Casto Canyon (and of Bryce Canyon) are formed of Claron-formation limestone. This limestone was deposited at the bottom of a large fresh-water lake about 40 million years ago, before the plateau area was lifted up above the valleys of the Great Basin.
Hard to keep the eyes on the trail.
Hard to keep the eyes on the trail.
Following the ATV path up Casto.
Following the ATV path up Casto.

The lower canyon has spaced fir and long-leaf pine, with a scattering of brush and wildflowers. Walk up to one of the tall long-leaf pines and stick your nose in a crack in the bark. Seriously. It smells like vanilla.

Once you're up on the mesa, the vegetation becomes more dense, with lupines and grasses among the brush, with low forests of pinion, fir, and juniper.
Climbing up toward the       Fremont ATV trail on the north fork.
Climbing up toward the Fremont ATV trail on the north fork.
From the Fremont ATV Trail looking       north.
From the Fremont ATV Trail looking north.
The upper mesa also offers a different panorama, looking at rock cliffs of a different color and views over the valleys to the north.

The volcanic rock here originated within the past 20 million years, when volcanoes dominated the southwest corner of the state.

For those who are interested in a longer ride, I suggest you form a loop of the singletrack past Casto Springs, the Fremont ATV trail, and the northern end of the ATV trail. This ride will be 14.4 miles. (See map.) Peak elevation will be 8000 feet, for a climb of 1000 feet.
As you climb the canyon, the walls of limestone come       closer.
As you climb the canyon, the walls of limestone come closer.
Looking up the wash as we cross. It's huge.
Looking up the wash as we cross. It's huge.
Another riding option is to head down the Cassidy Trail, either to highway 12 for a road return, or to Losee Canyon. Be warned -- the Cassidy Trail was hard to find, but (I hear) a sign has been installed, and more tires are following the Casto-Losee loop. Cassidy forks south (right) off Casto near Casto Springs, about 0.5 miles from where the singletrack meets the Fremont Trail. In 2002, perhaps it was because I was riding just two days after massive thunderstorms, but I couldn't find any sign of the trail.
If you plan on using the Cassidy Trail from the bottom end, the trailhead is the "Red Canyon" Trailhead, 2.5 miles uphill from the "Red Canyon" sign on the left at GPS N 37° 44.692' W 112° 18.090'.
View over the handlebars in the wider       section of lower Casto Canyon. Yeah, my first ride in Casto was that long       ago!
View over the handlebars in the wider section of lower Casto Canyon. Yeah, my first ride in Casto was that long ago!
This is what makes Casto Canyon a hit.
This is what makes Casto Canyon a hit.
Riding notes for loop version:
0 trailhead
0.4 metal gate, continue straight
3.7 signpost marking fork of singletrack off ATV trail, go right across creek
5.1 pass Casto Springs
5.4 steep short climb up out of wash on left, last chance to wash the chain
5.7 reach Fremont Trail ATV path, turn left uphill.
7.5 after crossing large "meadow" area, descend steeply into creek then climb again
8.5 junction of Fremont Trail with Casto Canyon ATV Trail, turn left.
10.7 back to junction of ATV trail with singletrack, turn right downhill.
14.4 back at trailhead
Bottom Line!
Very nice ride for an ATV route. The hoodoos and cliffs make awesome scenery. Weekday riding will avoid most of the ATV traffic, and getting an early start will help you avoid horses.
View up the trail.
View up the trail.
casto
Casto Canyon map
Getting there:
From US-89, drive 2.9 miles east on U-12 (towards Bryce Canyon National Park). Turn left on the gravel road marked for Casto Canyon. Drive 3 miles. Parking is on your left, the trailhead is on the right at GPS N 37° 47.038' W 112° 19.919'.
Riding resources for this trail:
One-page guide to this trail
High-res topo w Fremont and Losee (750 KB):   View
High-res topo w Losee and Cassidy to Hwy 12 (700 KB):   View
Lodging, camping, shops:     Links to Red Canyon area resources
Wide area map with alternate rides.
Wide area map with alternate rides.