2.0
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hikers
Trail to Onyx Bridge
01:54
6.80km
130m
Hiking
If you're seeking a genuine wilderness experience in the Painted Desert, the Trail to Onyx Bridge delivers. This 4.2-mile (6.8 km) hike, with an easy difficulty rating and 419 feet (128 metres) of elevation gain, guides you through vibrant red adobe hills and across washes, leading to the ancient Onyx Bridge. Expect to spend around 1 hour and 53 minutes exploring a landscape rich with scattered petrified wood and the striking colors of the desert.
Starting at the historic Painted Desert Inn, the route features a steep initial descent before becoming less defined, requiring good wayfinding skills. While there's parking at the trailhead, be aware that the path can be challenging to follow, especially after rain when sections might be muddy. A topographic map is a wise companion for this adventure, as cairns are not always reliable markers.
The highlight of this trail is the Onyx Bridge itself, a 30-foot long petrified log, approximately 210 million years old, that has eroded out of the Black Forest Bed. This "Off the Beaten Path" adventure offers a chance to explore the expansive wilderness of Petrified Forest National Park, discover numerous petrified wood specimens, and even spot petroglyphs, making it a unique journey into ancient geological history.
Last updated: June 9, 2026
Tips
Your route passes through a protected area
Please check local regulations for:
Waypoints
Start point
Parking
Get Directions
51 m
Painted Desert Inn
Highlight • Historical Site
Translated by Google •
Tip by
144 m
Kachina Point
Highlight • Viewpoint
Tip by
3.50 km
Onyx Bridge
Highlight • Natural Monument
Tip by
6.80 km
End point
Parking
Way Types & Surfaces
Way Types
6.59 km
175 m
< 100 m
Surfaces
6.53 km
204 m
< 100 m
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Elevation
Highest point (1,780 m)
Lowest point (1,670 m)
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Weather
Powered by Foreca
Thursday 16 July
29°C
16°C
76 %
Additional weather tips
Max wind speed: 14.0 km/h
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This route was planned by komoot.
Frequently Asked Questions
Where does the Trail to Onyx Bridge start, and where can I park?
The trail begins near the historic Painted Desert Inn, which also serves as a visual landmark for your return. Parking is available at the Inn. The Inn is located within Petrified Forest National Park.
Is the Trail to Onyx Bridge suitable for beginners?
While the initial descent is on a gravelly path, much of the route involves hiking across open terrain and through washes where the developed trail can become faint or disappear. Footing can be tricky, especially in the Lithodendron Wash, which might be muddy. Hikers should have good navigation skills, making it a moderate experience rather than easy for beginners.
What is the terrain like on this trail?
The trail starts with a gravelly path descending via switchbacks. After this, it transitions to open terrain and washes, where the path is often undefined. You'll encounter colorful badlands, petrified wood, and potentially muddy sections in washes. Good footwear is essential due to the varied and sometimes uneven footing.
What are the main points of interest along the route?
Beyond the stunning Painted Desert landscape, key features include the namesake Onyx Bridge, a dramatic petrified conifer tree. You can also discover ancient petroglyphs, remnants of an old stone dam, and enjoy views from Kachina Point near the trailhead.
What is the best time of year to hike this trail?
Petrified Forest National Park can experience extreme temperatures. Spring and fall generally offer the most pleasant weather for hiking. Summers can be very hot, and while winters are milder, conditions can vary. Always check the forecast before you go.
Is this trail dog-friendly?
Yes, leashed pets are permitted on all trails, paved roads, and in wilderness areas within Petrified Forest National Park. Always ensure your dog is on a leash no longer than 6 feet and pack out any waste.
Do I need a permit or pay an entrance fee for Petrified Forest National Park?
Yes, the Trail to Onyx Bridge is located within Petrified Forest National Park, which requires an entrance fee. No additional permits are typically needed for day hiking this specific trail, but always check the official NPS website for the most current regulations and fees before your visit. You can find more information at nps.gov.
What should I bring for this hike?
Given the trail's off-path nature and desert environment, it's crucial to bring plenty of water, sun protection (hat, sunscreen), sturdy hiking boots, and a topographic map or GPS device for navigation. Snacks and a first-aid kit are also recommended.
What should I know about navigation on this trail?
The developed trail often becomes faint or disappears after the initial descent, requiring hikers to navigate across open terrain and through washes. It's highly recommended to carry a topographic map and/or a GPS device, and to be comfortable with off-trail navigation. The Painted Desert Inn can serve as a visual landmark for your return.
Is this an out-and-back or a loop trail?
The Trail to Onyx Bridge is primarily an out-and-back route. You will hike to the Onyx Bridge and then return the same way to the Painted Desert Inn trailhead.
What kind of wildlife might I see?
While the focus is often on the geological features, the Painted Desert is home to various desert wildlife. You might spot lizards, snakes, various bird species, and small mammals. Always observe wildlife from a distance and do not disturb them.
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