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Routes
Hiking trails & Routes
United States
Texas
Brewster County

Outer Mountain Loop

Hard

2.6

(22)

34

hikers

Outer Mountain Loop

15:57

41.0km

1,600m

Hiking

Embark on the Outer Mountain Loop, a difficult 25.5-mile (41.0 km) hiking route that takes you through the diverse landscapes of Big Bend National Park. You will experience a dramatic shift from the piñon, juniper, and oak woodlands of the Chisos Mountains to the expansive Chihuahuan Desert. With an elevation…

Last updated: April 23, 2026

Tips

Your route passes through a protected area

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Waypoints

A

Start point

Parking

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1

624 m

Homer Wilson Ranch

Highlight • Historical Site

This ranch, also known as Blue Creek Ranch, was one of the most important in the area before it became a national park. This building is now protected and listed in the National Register of Historic Places.

Translated by Google •

Tip by

2

22.4 km

Great scenery on Dodson Trail and Juniper Canyon. Take an extra bottle of water because there is little shade on the trail.

Tip by

B

41.0 km

End point

Viewpoint

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Way Types & Surfaces

Way Types

39.7 km

1.19 km

145 m

Surfaces

38.4 km

2.54 km

134 m

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Elevation

Elevation

Nothing selected – click and drag below to see the stats for a specific part of the route.

Highest point (2,190 m)

Lowest point (1,160 m)

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Weather

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Today

Friday 22 May

29°C

17°C

19 %

Additional weather tips

Max wind speed: 13.0 km/h

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This route was planned by komoot.

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Frequently Asked Questions

Is the Outer Mountain Loop suitable for beginners?

No, the Outer Mountain Loop is considered extremely challenging and is not recommended for inexperienced hikers or as a first-time Big Bend hike. It demands significant physical endurance, careful planning, and experience with primitive trail conditions and self-sufficiency.

How many days are typically needed to complete the Outer Mountain Loop?

Most hikers plan for at least three days to complete the 30-mile (48 km) circuit. This allows for sufficient time to manage the strenuous terrain, significant elevation changes, and the need for water caching.

What is the terrain like on the Outer Mountain Loop?

The terrain is highly diverse and strenuous. It transitions from the piñon, juniper, and oak woodlands of the Chisos Mountains to the arid Chihuahuan Desert. You'll encounter considerable ascents and descents, including a steep 2,000-foot drop on the Juniper Canyon Trail and a 2,500-foot climb up Blue Creek Canyon. Sections like the Dodson Trail are particularly exposed and can be tricky to navigate through desert washes.

Where does the Outer Mountain Loop trailhead start, and is parking available?

The trail typically starts from the Chisos Basin in Big Bend National Park. Parking is available at the Chisos Basin trailhead. Backpacking permits are required for all overnight stays.

Are permits required for hiking the Outer Mountain Loop?

Yes, backpacking permits are required for all overnight stays on the Outer Mountain Loop. You should check the official Big Bend National Park website for current regulations and how to obtain permits.

Are there reliable water sources along the Outer Mountain Loop?

No, there are no reliable natural water sources along the 30-mile loop. Caching water at designated locations, such as Homer Wilson Ranch and the end of Juniper Canyon Road, is a critical and defining aspect of this hike. Hikers must carry all necessary water or arrange for caches.

Is the Outer Mountain Loop dog-friendly?

Big Bend National Park has strict regulations regarding pets. Generally, pets are not allowed on trails, off roads, or in the backcountry. Always check the current park regulations on the official nps.gov website before planning your trip with a pet.

What are the entrance fees for Big Bend National Park?

Big Bend National Park charges an entrance fee. This fee typically covers entry for a certain number of days. For the most current information on fees and passes, please visit the official National Park Service website for Big Bend National Park at nps.gov.

What is the best time of year to hike the Outer Mountain Loop?

The best time to hike is during the cooler months, typically from late October through April. It is strongly advised to avoid this hike during the hotter months, from early May through early October, due to extreme heat and lack of shade, which significantly increases the risk of dehydration and heat-related emergencies.

What kind of scenery can I expect on the Outer Mountain Loop?

You'll experience a wide variety of breathtaking scenery. This includes panoramic views of the Chisos Mountains, the vast Chihuahuan Desert extending into Mexico, and distant landmarks like Santa Elena Canyon. Highlights include picturesque views of pinnacles, the Sierra del Carmens, and the diverse flora and fauna of Boot Canyon. You'll transition from shaded woodlands to exposed desert landscapes.

Are there any notable points of interest along the way?

Yes, the route offers several notable points. You'll pass by the historic Homer Wilson Ranch, and enjoy the stunning View from Dodson Trail to Juniper Canyon. The diverse ecosystems and dramatic geological formations throughout the Chisos Mountains and Chihuahuan Desert are constant points of interest.

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