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Routes
Hiking trails & Routes
United States
Utah
Garfield County

Boulder Mail Trail and Death Hollow Loop

Routes
Hiking trails & Routes
United States
Utah
Garfield County

Boulder Mail Trail and Death Hollow Loop

Hard

2.8

(12)

87

hikers

Boulder Mail Trail and Death Hollow Loop

14:37

47.3km

1,630m

Hiking

The Boulder Mail Trail and Death Hollow Loop offers a demanding hiking adventure, spanning 29.4 miles (47.3 km) with a significant elevation gain of 5348 feet (1630 metres). This difficult route, estimated to take 14 hours and 37 minutes, immerses you in diverse terrain. You will traverse juniper and pinyon…

Last updated: April 23, 2026

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Your route passes through a protected area

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Waypoints

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Start point

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1

11.8 km

Mamie Creek Natural Bridge

Highlight • Natural Monument

From where the trail between Boulder Mail Trail and Mamie Creek Natural Bridge Trail splits, it's less than one mile until you reach this highlight. After the walk through Mamie …

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47.3 km

End point

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Way Types & Surfaces

Way Types

46.9 km

390 m

Surfaces

25.8 km

21.5 km

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Elevation

Elevation

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Highest point (2,060 m)

Lowest point (1,660 m)

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Today

Monday 1 June

28°C

10°C

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Max wind speed: 18.0 km/h

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Frequently Asked Questions

Where is the trailhead for the Boulder Mail Trail and Death Hollow Loop, and what are the parking options?

The Boulder Mail Trail and Death Hollow Loop typically starts from the Boulder Mail Trailhead, located near the town of Boulder, Utah. Parking is usually available at the trailhead. For overnight trips, permits are required, and it's advisable to check local regulations for any specific parking instructions or fees.

Do I need a permit or pay an entrance fee for the Boulder Mail Trail and Death Hollow Loop?

While there isn't a general entrance fee for the Grand Staircase-Escalante National Monument where the trail is located, permits are required for all overnight trips into the wilderness areas, including the Death Hollow section. These permits are typically free and can be obtained at visitor centers or self-registration stations. Always check the latest regulations before your trip.

Is the Boulder Mail Trail and Death Hollow Loop dog-friendly?

Information regarding dogs on this specific trail is not explicitly detailed in the provided sources. However, as it traverses wilderness areas within the Grand Staircase-Escalante National Monument, it's generally recommended to check with the Bureau of Land Management (BLM) for current regulations on pets, including leash requirements and areas where they might be restricted, especially in sensitive ecosystems like Death Hollow.

What is the best time of year to hike the Boulder Mail Trail and Death Hollow Loop?

The best time to hike this loop is typically during the spring (April-May) and fall (September-October) when temperatures are more moderate. Summer can be extremely hot, and winter can bring snow and ice, making the trail more challenging and potentially dangerous. Be prepared for unpredictable weather in any season and carry appropriate layers.

Is the Boulder Mail Trail and Death Hollow Loop suitable for beginners?

No, this loop is generally considered a difficult and challenging hike, not suitable for beginners. It involves significant elevation changes, route-finding challenges on slickrock, and often requires walking in streambeds. It's best suited for moderately experienced to expert hikers with good physical fitness and navigation skills.

What kind of terrain can I expect on the Boulder Mail Trail and Death Hollow Loop?

The trail offers incredibly diverse terrain, including juniper and pinyon pine forests, expansive Navajo sandstone slickrock, and lush canyon floors. You'll experience steep descents into canyons like Death Hollow, which features towering sandstone walls, perennial water flow, and deep pools. Expect to traverse large sections of slickrock, often marked by cairns, and be prepared for wet feet from streambed walking, especially in Death Hollow.

What natural features and landmarks will I see along the Boulder Mail Trail and Death Hollow Loop?

Highlights include the dramatic descent into Death Hollow, an oasis with lush vegetation, waterfalls, and intriguing alcoves. The route also connects with the serene Escalante River. A notable feature is the Mamie Creek Natural Bridge. You'll also encounter panoramic views of surrounding canyons and mesas, and remnants of the historic mail route.

What should I bring for a hike on the Boulder Mail Trail and Death Hollow Loop?

Given the trail's difficulty and remote nature, essential items include ample water (or a reliable filter), layers for unpredictable weather, a detailed map and compass/GPS for route finding, and trekking poles for stability on steep descents and slickrock. Be aware of abundant poison ivy in Death Hollow, so long pants and sleeves are recommended. For overnight trips, all necessary backpacking gear is required.

Does the Boulder Mail Trail and Death Hollow Loop intersect other well-known paths?

Yes, the route incorporates sections of several official trails. You will spend a significant portion on the Boulder Mail Trail itself, and also traverse parts of the Lower Death Hollow and Escalante River Trail. A small section also touches the Mamie Creek Natural Bridge Trail.

Are there any specific challenges or hazards to be aware of on this loop?

Yes, several challenges exist. Route finding can be difficult, especially on slickrock sections where cairns are crucial. Expect to get your feet wet from numerous water crossings and walking in streambeds, particularly in Death Hollow. Poison ivy is abundant in Death Hollow, so wear protective clothing. The trail also features steep drop-offs, slickrock friction pitches, and areas requiring scrambling, demanding good physical condition and careful footing.

What is the historical significance of the Boulder Mail Trail section of the loop?

The Boulder Mail Trail follows a historic mail route established in 1902. This route was vital for delivering mail by packhorse between the isolated towns of Boulder and Escalante. Along the trail, you can still find remnants of old mail posts, markers, and even a telegraph line strung from tree to tree, offering a unique glimpse into the region's past.

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