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563m
40m
Hiking
Explore the Petrified Forest Interpretive Trail, an easy 0.3-mile hike in Custer Gallatin National Forest, showcasing ancient petrified wood
Last updated: February 26, 2026
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563 m
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Way Types & Surfaces
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538 m
< 100 m
Surfaces
543 m
< 100 m
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Tuesday 19 May
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This route was planned by komoot.
The trail is considered easy overall, but it does feature a significant uphill section, especially in the final half-mile, with switchbacks. This part can feel like a 'great calf stretch' and requires a moderate level of effort, making it a good workout despite its short length.
The trail is approximately one mile long, one-way. While the exact duration depends on your pace and how much time you spend observing the geological features, most hikers can complete the round trip in about an hour to an hour and a half.
The trail begins by winding through a picturesque meadow before entering a mature fir and aspen forest. As you ascend, the path becomes steeper, passing impressive cliff faces rich in petrified wood. You'll also enjoy splendid views of the Tom Miner Basin and Sheep Mountain.
This trail is renowned for its exceptional display of petrified wood and semi-precious gems like amethyst, opal, and rose quartz. Keep an eye out for informational plaques that explain the silicon dioxide-based treasures. A highlight is a beautifully preserved, upright petrified tree trunk suspended from a cliff ceiling, a testament to ancient mudflows.
The Petrified Forest Interpretive Trail is located outside of Yellowstone National Park, within the Custer Gallatin National Forest. Specific parking details are usually available on local forest service maps or websites, but generally, there is a designated trailhead parking area for access.
The trail's moderate difficulty, especially the uphill sections, might be challenging for very young children or those unaccustomed to hiking. Dogs are generally permitted on trails within the Custer Gallatin National Forest, but they must be kept on a leash at all times to protect wildlife and ensure a pleasant experience for all visitors.
The best time to visit is typically during the late spring, summer, and early fall months when the weather is mild and the trail is free of snow. Always check local weather forecasts before heading out, as conditions can change rapidly in mountain environments.
As the trail is located within the Custer Gallatin National Forest, there are generally no specific permits or fees required for day hiking. However, it's always a good idea to check the official Custer Gallatin National Forest website for any current regulations or alerts before your visit.
The Petrified Forest Interpretive Trail is an out-and-back route, meaning you will return along the same path you took to reach the end of the interpretive section.
Yes, the route also passes through sections of the Buffalo Horn Pass Trail, offering potential connections to other areas within the Custer Gallatin National Forest.
The area is home to various wildlife. Hikers occasionally spot deer and elk. While less common, grizzly bears are also present in the region, so it's important to be bear-aware and carry bear spray.