3.0
(24)
88
hikers
Keyhole Sink Trail
00:36
2.27km
20m
Hiking
Embark on an easy hike along the Keyhole Sink Trail, a gentle 1.4-mile (2.3 km) route that takes you through a serene ponderosa pine forest. You will gain only 65 feet (20 metres) in elevation, making this a perfect short adventure that typically takes just 35 minutes to complete. The path winds through pleasant shade, offering the distinct scent of pine and glimpses of ancient tree stumps from past logging. Your journey culminates at the Keyhole Sink, a unique box canyon with striking gray volcanic walls. Here, you can explore ancient petroglyphs left by the Cohonina people, a truly remarkable historical feature.
Accessing the Keyhole Sink Trail is straightforward, with parking usually available right at the trailhead. While the route is considered easy, some sections may be rocky, so wearing sturdy shoes is a good idea for comfort and to ensure a safe experience. Keep in mind that the grotto at the end of the trail provides no cover from the sun, so plan your visit accordingly, especially on warmer days. This trail is an excellent choice for a quick outing when you are in the area.
The Keyhole Sink Trail offers a fascinating glimpse into the past, showcasing petroglyphs created by the Cohonina people. These ancient etchings on the volcanic walls provide a tangible connection to the region's early inhabitants. Additionally, after periods of rainfall, you might be lucky enough to witness a seasonal waterfall cascading within the keyhole-shaped lava flow, adding another layer of natural beauty to this historical site. It is a notable stop within the Kaibab National Forest.
Last updated: April 23, 2026
Tips
Your route passes through a protected area
Please check local regulations for:
Kaibab National Forest
Waypoints
Start point
Parking
Get Directions
1.14 km
Keyhole Sink Waterfall and Petroglyphs
Highlight • Waterfall
Tip by
2.27 km
End point
Parking
Way Types & Surfaces
Way Types
2.10 km
< 100 m
< 100 m
Surfaces
2.17 km
< 100 m
< 100 m
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Elevation
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This route was planned by komoot.
Frequently Asked Questions
Where is the trailhead for Keyhole Sink Trail and what are the parking options?
The Keyhole Sink Trail is located in the Kaibab National Forest, between Williams and Flagstaff, Arizona. The trailhead is easily accessible, and there is typically ample parking available at the site.
What is the terrain like on the Keyhole Sink Trail, and is it suitable for beginners?
The trail offers an easy, relatively flat walk through a tranquil ponderosa pine forest. While generally smooth, some sections can be rocky, so sturdy shoes are recommended. Its minimal elevation change and short distance make it an excellent choice for beginners and casual hikers.
What are the main points of interest along the route?
The primary draw is the Keyhole Sink Waterfall and Petroglyphs. You'll find ancient petroglyphs etched into the volcanic rock walls of a scenic box canyon, created by the Cohonina people about 1,000 years ago. The keyhole-shaped lava flow can also feature a seasonal waterfall, especially after rainfall in early spring.
Can I bring my dog on the Keyhole Sink Trail?
Yes, the Keyhole Sink Trail is dog-friendly. Please ensure your dog remains on a leash and that you clean up after them to preserve the natural beauty and historical significance of the area for all visitors.
What is the best time of year to hike this trail?
The trail is enjoyable year-round. Spring offers the best chance to see the seasonal waterfall after rainfall. Summer provides pleasant shade from the ponderosa pines. In winter, the trail is also marked for cross-country skiing, offering a different experience.
Are there any permits or fees required to hike the Keyhole Sink Trail?
No, there are no specific permits or entrance fees required to hike the Keyhole Sink Trail itself. It is freely accessible to the public within the Kaibab National Forest.
Is the Keyhole Sink Trail suitable for families with children?
Absolutely! The trail's easy difficulty, short distance (approximately 1.5 miles round trip), and engaging historical petroglyphs make it a very popular and suitable hike for families with children.
What should I know about visiting the Kaibab National Forest where the trail is located?
When visiting the Kaibab National Forest, remember to practice Leave No Trace principles. Respect wildlife, stay on marked trails, and be mindful of fire restrictions, especially during dry seasons. The forest is a protected area, so help keep it pristine.
Is the Keyhole Sink Trail a loop or an out-and-back route?
The Keyhole Sink Trail is an out-and-back route. You will hike to the Keyhole Sink and then return along the same path to the trailhead.
What should I wear and bring for this hike?
Given the potentially rocky sections, sturdy hiking shoes are recommended. Bring water, especially during warmer months, as there is no water available on the trail. Sun protection is also advisable, as the grotto at the end of the trail has no cover from the sun.
Nearby routes
Trail Reviews
A short walk on the Keyhole Sink Trail – a path to a horseshoe-shaped rock formation where prehistoric Native Americans drove buffalo to successfully end their hunt. There's supposed to be a waterfall here in the spring – we're probably not going to have any luck with that on this trip 😊 Except for the lack of undergrowth, the trail is very reminiscent of our Black Forest.