Rock Creek Trail (West)

The Rock Creek Trail was formerly one of two long officially unnamed loops off of the Sand Canyon Trail system in Canyon of the Ancients National Monument in southwest Colorado. In 2011 the western loop has been named the Rock Creek Trail. The trail head is 12 miles west of Cortez, CO on County Road G. These two long loops explore the two forks of Rock Creek to the west of Sand Canyon.

The starting point for the Rock Creek loop trail is the inconspicuous "Horses not Recommended" segment that is just past the Castle Rock spur, only about 250 yards from the trail head on the left. You have to keep an eye out or you'll miss the otherwise well marked trail. The junction for the East Rock Creek loop is within sight a little further on.

The "Horses not Recommended" segment passes through Pinon Pine and Utah Juniper high desert habitat, along cliffs and over large sandstone outcrops, before reaching a trail post. Stay to the left. This segment is part of the officially renamed East Rock Creek loop trail, that explores the East Fork canyon.

Stay left at either of the next two trail junctions that arrive after a few more minutes. There are no signs to help but you want the canyon that is more to the west. I turned at the second trail junction for a counter clockwise tour, but either way will work.

There is good desert scenery and rock formations in the West Fork canyon, but I didn't see any Ancestral Pueblo ruins along this route, or any large arches.

This trail appears to get use from mountain bikers and a few horse riders but not very many hikers. Crossing Rock Creek at the far extent of the trail, there is no riparian habitat in this creek. No cottonwoods, no willows, the desert plants extend right to the banks of the creek. I suppose that without water no one could live here.

I spent about 3:20 hours on this route, for about a 6 mile hike. I was going slowly and scanning with binoculars for ruins sites and perhaps a large arch as there is in the nearby East Rock Creek loop.

East Rock Creek Loop Trail (Old System)

The East Rock Creek Trail is a 5.0 mile loop off of the South Trail Head of the 6.5 mile Sand Canyon Trail in Canyons of the Ancients National Monument in southwest Colorado. The main trail head is 12 miles west of Cortez, CO on County Road G.

The trail junctions of the East Rock Creek Trail are at the 0.25 point and about 1.8 miles on the Sand Canyon Trail and are clearly marked. This is just past the large Castle Rock formation and ruins site that looms above the slickrock near the trail head. (In 2011 the formerly unnamed loop into the east fork of Rock Creek Canyon is now the East Rock Creek Trail. The segments mentioned here are now called Connecting Trails.)

This trail has scenery typical of the high desert country seen in the Four Corners area, lots of Pinon Pines and Utah Juniper trees with eroded layers of rock stacked together and mountains or canyons in the distance. Turning at the 0.25 mile mark and heading west there are at least four small ruins sites in the first 1.5 miles. (This segment is the south Connecting Trail.)

Three of the four ruins that are obvious are associated with rock alcoves that face the south. This one is the most extensive.

The trail continues north along the east side of the Rock Creek Canyon. There are two trail posts indicating trail junctions with unnamed trails that explore the two forks of Rock Creek Canyon. At the second trail post at 2.5 miles, the 2011 Connecting East Rock Creek Trail turns east and climbs to the mesa area between Rock Creek Canyon and Sand Canyon.  (The 2011 East Rock Creek Trail stays north. )

There are at least seven ruins visible between the 1.5 and 2.5 mile trail posts. They are down in Rock Creek Canyon to the west and are easy to miss as they are not right along the trail. It is helpful to have binoculars to view them. There is a large arch that I've called Rock Creek Arch another 20 minutes along the formenrly unnamed trail (the 2011 East Rock Creek Trail) that continues north.

Just above the trail junction there is an odd small hole in the side of the hill that appears to be a mining effort. The views are good from the elevated area with a spur trail leading to the edge of the mesa.

It is 0.75 miles across the mesa area to the connection with the Sand Canyon Trail. Along the return route to the trail head there are several spur trails to at least two small ruins sites along the south end of this scenic trail.

One of the two sites is known as Saddle Horn Ruins, the only one with a well known name. (In 2011 several of the other sites on the Sand Canyon Trail have publicized names.) I usually spend about 3:00 hours on this loop with stops to view the ruins.

Castle Rock Pueblo Trail at Sand Canyon

The Castle Rock Pueblo Trail is a spur off of the Sand Canyon Trail in Canyon of the Ancients National Monument in southwest Colorado. The Castle Rock formation is visible from the slickrock parking area at the trail head, about 12 miles west of Cortez, CO on County Road G.

From the front side of Castle Rock a small arch is visible to the left. Below the arch are the rubble remains of some of the estimated 40 to 60 rooms that served 75 to 100 residents. In the notch at the top right, there appears to be a log floor with two courses of stone bricks.

Getting up closer, the log floor looks like it could have been a lookout post, or maybe for signaling. On the south side of Road G and a little to the west is another large rock formation called Battle Rock. From a high enough vantage point there appears to be a structure on top of there also.

Just to the left of the lookout notch, behind a large slab of rock is a section of preserved wall. It is possible to view this oddly placed structure from the opposite side also.
Hiking past Castle Rock on the west side there the spur trail leads around the back side to a large section of preserved wall. This seems to be a particularly thick wall section.
The habitat here is Pinon Pine and Utah Juniper forest. There is water in McElmo Creek slightly to the south but there doesn't appear to be permanent water in the vicinity of Castle Rock.

This is the largest village at this end of the Sand Canyon Trail system, though there are several smaller sites nearby on the Sand Canyon Trail and the East Rock Creek Trail. The very large Sand Canyon Pueblo is 6.5 miles up the Sand Canyon trail near the north trailhead.

East Rock Creek Trail near Sand Canyon

At the lower trail head for the 6.5 mile Sand Canyon Trail in Canyons of the Ancients NM in southwest Colorado, there are connectiong trails for East Rock Creek Trail  at 0.25 miles and about 2.0 miles. There is a 5.0 mile loop hike using both connections. In 2011 there has been some reorganization of the trail system.

This trail head is about 12 miles west of Cortez, CO on County Road G. The old East Rock Creek loop  has a renamed side loop that is the new East Rock Creek Trail. It circles around the East Fork Canyon and connects back to the Sand Canyon trail head for about a 7.0 mile hike.

At the trail head, the Castle Rock formation towers over the area. There is a large Ancestral Pueblo ruins site arrayed around Castle Rock and a small arch in the upper west corner. A large section of intact wall is visible on the back side of Castle Rock.


The south connecting trail segment features at least four small ruins sites. Three are associated with alcoves but one wall section appears to be sitting on top of the mesa, something of a penthouse location. At the 2.5 mile post the new East Rock Creek Trail continues north while the old route connecting trail turns back east. (Pictures of the ruins along the connection loop are on the Old System post.)

About one mile further down the East Rock Creek loop, a large arch appears on the right. It is possible to climb up closer and see blue sky through the arch. This large arch doesn't seem to get much attention despite being a major feature.

The Rock Creek trail appears to get use from mountain bikers and horse riders but less from hikers. The trail circles around this short but deep canyon. I didn't see any more ruins sites up this otherwise scenic canyon. (I saw more sites on a later hike but there are in the canyon floor area below the trail and easy to miss.)

Toward the last segments of the hike there is another formenrly unnamed side loop, in 2011 named the  Rock Creek Trail, that goes around the West Fork of Rock Creek. This is another option in the Sand Canyon Trail system.

There is one more option on this route. The trail splits about one mile from the end and one can choose the "Horses not Recommended" trail or the Ok for Horses route. The not for horses segment passes over several segments of slickrock and along some sandstone cliffs with Castle Rock coming back into view.

The slick rock option is more interesting for hikers, giving better views and variety of terrain. It took me 3:30 hours to walk the East Rock Creek Trail route.

Rock Creek Arch

The East Rock Creek Trail was formerly an unnamed seven mile side trail off of the popular East Rock Creek loop of the Sand Canyon Trail in Canyon of the Ancients National Monument in southwest Colorado, west of Cortez. In 2011, there has been some trail reorganization and the route has been renamed as the East Rock Creek Trail. Segements of the former East Rock Creek Loop are now called connecting trails. About 3.0 miles along the route there is a very large and seemingly little known arch.


The main trail comes around a corner and heads up the east fork of Rock Canyon. Suddenly high up on the right is a large arch. The trail head maps and information make no mention of this large feature and it was a complete surprise to see it. It is possible to work your way uphill toward the arch from the right. There is a faint trail going up that appears but it seems to start at a point before you actually see the arch.

I was able to get under far enough to get the blue sky through the arch view. This is a very large and graceful arch but there seems to be little information about it.

From under the arch there is a good view further up this short but wide and deep canyon. The arch is easily visible all the way around the East Fork canyon rim and trail. It took me about 1:30 hours to hike to the Rock Creek Arch and 3:30 hours to travel the 2011 East Rock Creek Loop.