| Adams Canyon Trail | Wasatch-Cache National Forests | 3 |
| Beyond the falls, the trail is difficult to follow. You will travel through a series of cliff areas as it meanders to the ridge and intersects with the Great Western Trail. |
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| Agua Canyon Connecting Trail | | |
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| Alcove Spring Trail | Canyonlands National Park | |
| This trail leads through Trail and Taylor Canyons to meet the Green River and White Rim Road. It can be used in conjunction with Syncline Loop Trail to form a backpacking loop. |
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| Alexander Basin Trail | Wasatch-Cache National Forests | 2.6 |
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| Alpine Pond Nature Trail | Cedar Breaks National Monument | |
| This trail follows a two-mile loop into the heavily forested area of a natural amphitheater protected within the Monument. A printed trail guide is available at the Visitor Center and trailhead. |
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| Alpine Pond Trail | | |
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| Alta-Brighton Trail | Wasatch-Cache National Forests | 3.5 |
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| Amethyst Lake | Wasatch-Cache National Forests | 2.5 |
| This is a Broad, fairly level trail which is generally in good condition (except for a few large mudholes). At the first trail junction, take the left-hand fork trail (it is well marked), which goes up Ostler Creek. The trail will be very steep for the... |
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| Anderson Valley Trail | | |
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| Angel Trail | | |
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| Angel's Landing | Zion National Park | 2 |
| The trail is mostly very well maintained, which is great because it is somewhat steep in some places. The last 1/2 mile of the trail is very steep (somewhat like rock climbing), but chain is supplied for assistance & extra security. |
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| Angels Landing | Zion National Park | |
| This aptly named perch stands atop a 1,500-foot sheer-walled monolith in Zion Canyon. Getting here takes a lot of effort, but the panorama makes it worthwhile. The last part of the climb has steep and exposed areasnot recommended for those with a... |
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| Antelope Canyon Trail | Wasatch-Cache National Forests | 6.7 |
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| Aquarius Trail | | |
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| Arch Canyon Trail | | |
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| Aspen Grove Trail | Uinta National Forest | 6 |
| Aspen Grove Trail begins with an easy mile of pavement to the first falls. The trail is mostly moderate with a few short, steep sections and numerous switchbacks. Vegetation Common trees along the way include aspen, Douglas fir, subalpine ... |
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| Asphalt Ridge Loop | Ashley National Forest | 7 |
| From viewpoint, ride south on Hwy 40. 2 miles, to powerlines crossing highway. Make a sharp left on dirt road and follow the powerlines for 1.7 miles. Route goes over a low pass, then turns left (stay on dirt) and travels NW along the base of Asphalt R... |
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| Aztec Butte Trail | Canyonlands National Park | |
| This trail leads two miles round trip and ascends a slickrock dome reaching a height of 6,298 feet. |
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| Baer Creek Trail | Wasatch-Cache National Forests | 4 |
| This trail is maintained as a primitive route and in some areas is very difficult to follow as it climbs the ridge. |
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| Balanced Rock Loop Trail | Arches National Park | 0.3 |
| This route leads less than one half mile around the base of Balanced Rock. |
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| Bald Mountain National Recreation Trail | | |
| You'll experience the Uinta Range’s alpine grandeur on this well-graded trail to the top of 11,947-foot Bald Mountain. The four-mile round-trip is the easiest summit in the area with an elevation gain of 1,250 feet, but can still be strenuous due to ... |
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| Bald Mountain Trail | Wasatch-Cache National Forests | 2 |
| This is a great hike for people with limited time who want a panoramic view of the High Uintas. The USGS Quad and most other maps label the entire route from Bald Mountain to Trial Lake as the "Notch Mountain Trail" and do not show the name "Notch Lake... |
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| Baldy Ridge Trail | Wasatch-Cache National Forests | 5.1 |
| 1 mile south on Causey Reservoir Trail junction of Baldy Ridge Trail. The trail switchbacks up mountain to east. It climbs until you reach the top of Baldy Ridge. |
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| Bassett Springs Loop | Ashley National Forest | 4 |
| From parking area, cross highway to trail head sign. Follow bike route signs. Surface of road is fairly good on the ascent except for one short, sharp, rocky stretch about 1.5 miles up. Route tops out on Grizzly Ridge about 2.5 miles from beginning, wi... |
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| Bassett Springs Loop Trail | Uinta National Forest | 4 |
| Trail follows an old jeep trail to the west. Here the terrain is aspen, Lodgepole Pine, Douglas Fir and some sagebrush openings. Then the trail circles around to the north, traversing the southern flank of Grizzly Ridge. Vegetation is aspen mixed in wi... |
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