4.6
(3581)
11,867
runners
01:46
16.6km
210m
Running
Embark on the Petrified Forest Loop, a difficult jogging route spanning 10.3 miles (16.6 km) through Theodore Roosevelt National Park. You will experience varied terrain, from expansive prairies to dramatic badlands, gaining 674 feet (205 metres) of elevation. The route, which takes about 1 hour and 46 minutes to complete,…
Last updated: April 23, 2026
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Your route passes through a protected area
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Waypoints
Start point
Parking
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10.6 km
Highlight (Segment) • Trail
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16.6 km
End point
Parking
Way Types & Surfaces
Way Types
11.5 km
5.10 km
< 100 m
Surfaces
16.6 km
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Elevation
Highest point (830 m)
Lowest point (730 m)
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Wednesday 27 May
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Max wind speed: 36.0 km/h
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This route was planned by komoot.
The Petrified Forest Loop is considered a moderate to strenuous jogging route, primarily due to its length of over 10 miles and significant elevation changes. While some sections, particularly about 5.5 miles in the middle, are relatively flat and easy, the North Petrified Forest Trail segment is particularly demanding, featuring a steep 300-foot descent immediately followed by a 300-foot ascent.
Komoot estimates the average jogging time for the Petrified Forest Loop to be around 1 hour and 46 minutes. However, this can vary significantly based on your fitness level, the trail conditions, and how often you stop to enjoy the scenery or observe wildlife.
The route offers a diverse terrain, including packed dirt, dramatic badlands formations, and extensive stretches of open grassland. It is generally unpaved, with sections that may have uneven ground or loose stone. Be aware that the trail can become quite slick and muddy after rain, so proper footwear is essential.
The Petrified Forest Loop provides an excellent opportunity for wildlife viewing. You might spot bison, wild horses, pronghorn, and prairie dogs in their natural habitat. Keep an eye out, especially in the open prairie sections.
Yes, the route intersects with several other paths within Theodore Roosevelt National Park. You will jog along sections of the Maah Daah Hey Trail, the Painted Canyon Loop Trail, the Mike Auney Trail, and the Lone Tree Spring Loop Trail.
The primary highlight of this route is the impressive concentration of petrified wood, which ranks among the highest in the United States. The fossils are easy to spot and form a visible ancient forest. You'll also experience sweeping views of the Little Missouri River, dramatic badlands, and vast prairies. A notable section is the Petrified Forest Trail (South).
Theodore Roosevelt National Park generally allows pets on leashes no longer than 6 feet in developed areas, along roads, and in campgrounds. However, pets are typically not allowed on backcountry trails like the Petrified Forest Loop to protect wildlife and natural resources. Always check the official National Park Service website for the most current regulations before bringing your pet.
Yes, Theodore Roosevelt National Park charges an entrance fee. This fee grants you access to the park for a set number of days. Specific permits might be required for certain activities, but generally, a standard entrance fee covers access to trails like the Petrified Forest Loop. You can find detailed information on fees and passes on the official nps.gov website.
Spring and fall generally offer the most pleasant conditions for jogging the Petrified Forest Loop, with milder temperatures. Summers can be very hot with little to no shade, making hydration crucial. Winters can bring snow and ice, making sections challenging or impassable. Always check current weather and trail conditions before you go.
Specific parking information for the Petrified Forest Loop trailhead can typically be found on the Theodore Roosevelt National Park website or detailed park maps. It's advisable to check these resources for the most accurate and up-to-date parking locations and any potential restrictions or fees.
Given the trail's length, lack of shade, and absence of reliable water sources, it's crucial to bring ample water, especially during warmer months. Sun protection (hat, sunscreen, sunglasses) is highly recommended. Proper jogging shoes with good traction are essential for the varied and potentially uneven terrain. A map or GPS device is also advisable for navigation.