5.0
(7439)
15,331
hikers
07:39
25.7km
730m
Hiking
The Boulder Mail Trail offers a challenging hiking experience, covering 16.0 miles (25.7 km) with a significant elevation gain of 2410 feet (734 metres). This difficult route typically takes around 7 hours and 38 minutes to complete. You will journey through a diverse landscape, from juniper forests and slickrock expanses to sandy washes and sagebrush, encountering wide, white plateaus and domes.
Planning your hike requires attention to detail, as permits are necessary for accessing the Boulder Mail Trail. Be sure to secure yours in advance to avoid any issues. You should also be aware that certain sections of the trail, particularly within Death Hollow, may have poison ivy, so wearing long pants is a good idea. Navigation across slickrock areas demands careful observation of cairns, as the path can be easy to lose.
This historic trail is notable for its journey into and out of several canyons, including the particularly stunning Mamie Creek. Here, you will find tall pines and riparian grasses, offering a contrast to the surrounding desert. The route provides a deep immersion into the stark beauty and solitude of the Grand Staircase-Escalante National Monument.
Last updated: April 23, 2026
Tips
Your route passes through a protected area
Please check local regulations for:
Phipps-Death Hollow Outstanding Natural Area
Waypoints
Start point
Parking
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8.33 km
Highlight (Segment) • Trail
Tip by
12.8 km
Highlight • Natural Monument
Tip by
25.7 km
End point
Parking
Way Types & Surfaces
Way Types
20.0 km
2.95 km
2.27 km
289 m
125 m
Surfaces
25.3 km
289 m
125 m
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Elevation
Highest point (2,060 m)
Lowest point (1,730 m)
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While a very fit hiker might complete the entire 16-mile (25.7 km) route as a long day hike, it's generally considered a difficult undertaking. Many hikers prefer to break it into an overnight or two-night backpacking trip to fully appreciate the scenery and manage the challenging terrain. The estimated moving time is around 7.6 hours, but this doesn't account for breaks, navigation, or enjoying the views.
The terrain is incredibly diverse and challenging. You'll encounter everything from juniper forests and sandy stretches to vast expanses of slickrock. The route involves significant elevation changes as it descends into and climbs out of several canyons, including Sand Creek, Death Hollow, and Mamie Creek. Expect steep slickrock sections, zigzagging switchbacks, and even walking directly in streambeds in places like Death Hollow, making wet feet unavoidable. You'll also cross wide, white plateaus and dunes of bleached rock.
Yes, permits are required for hiking the Boulder Mail Trail, as it is located within the Grand Staircase-Escalante National Monument. It's essential to secure your permit in advance to ensure a smooth and legal trip. Check the official Grand Staircase-Escalante National Monument website for the most current information on how to obtain permits.
As the trail is located within the Grand Staircase-Escalante National Monument, dogs are generally allowed but must be kept on a leash at all times. Please be aware that the rugged terrain, potential for extreme temperatures, and lack of reliable water sources can make this a challenging hike for dogs. Always pack enough water for your pet and be mindful of their paws on hot slickrock.
The best times to hike are typically spring (April-May) and fall (September-October) when temperatures are more moderate. Summer can be extremely hot, making the exposed sections very challenging, while winter can bring snow and ice, especially in higher elevations and shaded canyons, adding to the difficulty. Always check weather forecasts before you go.
Beyond the stunning desert landscapes, the trail is rich in history. You can still spot remnants of the old telegraph line, a tangible link to its past as a crucial mail route. Key natural highlights include the 'oasis of life' in Death Hollow with its perennial water, lush vegetation, and dramatic cliffs, and the picturesque Mamie Creek Natural Bridge. The entire Boulder Mail Trail itself is considered a classic of the Colorado Plateau.
As part of a National Monument, hikers must adhere to Leave No Trace principles. This includes packing out all trash, staying on designated trails where possible, and respecting wildlife. Permits are required for overnight stays and some day hikes. There are no entrance fees for the Monument itself, but specific activities or areas might require permits. Always check the official Monument website for the latest regulations and any fire restrictions.
No, the Boulder Mail Trail is generally classified as moderate to difficult and is not recommended for beginners. It demands good physical fitness, experience with backpacking or challenging day hikes, and strong navigation skills, especially on slickrock sections where cairns mark the way. The steep ascents and descents into canyons are particularly challenging.
The Boulder Mail Trail is typically hiked as a point-to-point route between the towns of Boulder and Escalante, Utah. There are trailheads at both ends. Parking is available at these trailheads, but given the point-to-point nature, hikers often arrange for a shuttle or a car drop-off/pickup at either end. It's advisable to research specific trailhead locations and parking availability before your trip.
Yes, while the route primarily follows the Boulder Mail Trail (84% of the route), it also passes through sections of the Mamie Creek Natural Bridge Trail (11%) and briefly touches on the Old Highway Road (4%) and the Escalante River Trail (4%). These intersections are generally well-marked or intuitive within the context of the main route.
Be prepared for significant navigation challenges on slickrock sections; cairns are crucial, but can be sparse or hard to spot. In Death Hollow, expect to walk in the streambed and be aware of prevalent poison ivy. Water sources are limited and often seasonal outside of Death Hollow, so carry ample water. Consider hiking it as an overnight trip to avoid rushing and to better manage the strenuous canyon crossings. Always carry a detailed map and GPS device.
The desert environment supports a variety of wildlife, though many animals are nocturnal or shy. You might spot mule deer, various species of lizards, snakes (including rattlesnakes, so watch your step), and a wide array of birds, especially near water sources like Death Hollow. Keep an eye out for raptors soaring overhead. Always observe wildlife from a distance and never feed them.