| Facilities: There is a parking area at the trailhead, but other than that, there are no facilities at Keyhole Sink Trail. Best Time To Visit: This trail is open year-round however, it may be muddy in the springtime. Cross-country skiing is possible if the conditions are right. Fees: There are no fees charged for hiking this trail. Accessibility: This area is not accessible. Rules: While visiting the Keyhole Sink Trail, please respect the irreplaceable traces of the past that are along it. Leave them undisturbed so that others may enjoy. Directions: To reach Keyhole Sink Trail from Williams, take I-40 east to the Pitman Valley Exit (#171). Turn left and cross over the Interstate. Proceed east on Historic Route 66 for about 2 miles to the Oak Hill Snowplay Area. The trail begins on the north side of the road. Please park in the lot provided. To reach Keyhole Sink Trail 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.Map: Click here for a map to Keyhole Sink Trail Reservations: Reservations are not needed or accepted to use the trail. | 
