Keyhole Sink Trail


A photo of Keyhole Sink in summer

This trail provides the visitor with an easy to hike pathway to a scenic box canyon where prehistoric residents left their mark carved into the canyon's gray volcanic walls. Roughly 1,000 years ago, some ancient artisan or artisans pecked images into the dark basalt using another rock for a tool. These images are called petroglyphs. The message that they portray suggests that the area was important to that ancient communicator as a hunting ground. One of the petroglyphs is a dramatic depiction of a deer herd entering the canyon. Take note of that and keep a sharp eye. This area is still an excellent place to encounter wildlife. While you're visiting the Keyhole Sink Trail, please respect the irreplaceable traces of the past that you find along it. Leave them undisturbed so that others may enjoy them as you have.

The trail traverses easy terrain through a ponderosa pine forest. The return trip from Keyhole Sink is over the same trail. The trail is marked for cross-country skiing with blue triangles. 

At a Glance

Restrictions: No motorized vehicles.

General Information


Access: From Williams, take I-40 east to the Pitman Valley exit #171. Turn left and cross over the Interstate. Proceed east (right) on Historic Route 66 for about 2 miles to the Oak Hill Snowplay Area. The trail begins across Rt. 66, on the north side of the road. Please park in the lot provided. From Flagstaff, take the Parks exit #178. Turn right (north) and then turn left (west) onto Historic Route 66. Drive west for about 4 miles to the trailhead.

Travel Time: About 20 minutes from Williams to the trailhead.

Road Conditions: Paved all the way

General Notes:

A photo of Keyhole Sink in winter with people playing

A closeup image of the Keyhole Sink petroglyphs

Beautiful waterfalls with visitors having fun in the snow during the winter.
A photo of Keyhole Sink waterfalls in the summer

A close-up image of the historic petroglyphs that were restored in 2010 to transcribe the life & times of that era.



Closer view of the majestic waterfalls at Keyhole Sink.

Recreation Map

Map showing recreational areas. Map Information



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