Southwest of Flagstaff, the White Horse Lake Loop is a 28 mile loop open to off-road motorcycle trails riding. The route is not recommended when wet due to thick mud.
Directions: In Williams, AZ, take 4th St. (S. Perkinsville Rd / FR 173) (at White Horse Lake sign) south
8.4 miles to another White Horse Lake sign (Forest Rt. 110). This is where the loop starts. Follow the road east to the White Horse Lake Campground. Head south and then west to make a loop back to 4th Street (S. Perkinsville Rd. / FR 173.)
Overall, White Horse Lake ORV Loop is the 15th most popular dirt bike trail of all 46 dirt biking rides in Arizona.