Devils Garden is the longest of all maintained trails in the park (7.2 miles round trip, including all spur trails to points of interest). It contains eight of the best known arches in the park, including the longest one, called Landscape Arch.
From the trailhead the path goes for only 0.3 mile before another small trail leaves on the right to Pine Tree Arch and Tunnel Arch. Both Pine Tree and Tunnel are very young arches with relatively small openings surrounded by large masses of rock.
Continuing on the main trail for another 0.6 mile will bring you to another junction. You will be returning on the path to the right, so for now bear left toward Landscape Arch. Soon you will see a short loop trail on the left leading to this well known landmark. The arch is so improbably long and slender its span seems to defy the laws of physics. The slender ribbon of stone extends for some 300 feet from base to base, and rises 105 feet above the sandy desert floor. Landscape is a very old arch, definitely in the last stages of its existence.
From Landscape Arch the trail continues past Wall Arch, to another short trail leading to Navajo and Partition Arches. Navajo Arch, on the western edge of Devils Garden, is the larger of the two.
The main trail ends at Double O Arch, 2.2 miles from the trailhead. From here another short trail on the left goes to the base of the Dark Angel. Dark Angel is a sandstone monolith, about 150 feet high, that stands prominently on the edge of a long narrow bench overlooking Salt Valley.
When you are ready to return, you should turn north from Double O Arch, and take the loop trail that goes back through Fin Canyon. This trail is a rather primitive trail, but it is quite easy to follow and maybe the most interesting part of the hike. The trail passes through an intriguing collection of thin stone fins, formed millions of years ago when the ground rose beneath a solid block of sandstone, causing it to fracture and separate into long, parallel vertical sheets. The existence of these large fins is the primary reason why so many arches have been formed in Arches National Park.
After spending about a mile in Fin Canyon, the trail breaks out on the eastern side of Devils Garden and eventually meets the main trail again just east of Landscape Arch. From the junction it is an easy 0.9 mile walk back to the trailhead.
Directions
Just follow the main road to the end, about 20 miles from the visitor center.