MAILING ADDRESS Walnut Canyon National Monument; Walnut Canyon Road; Flagstaff, AZ 86004-9705; Telephone: 602-526-3367 DIRECTIONS The Monument is east of Flagstaff in the central part of the state. From Flagstaff go seven-and-one-half miles east (I-40) to the entrance road at Walnut Canyon. WHEN TO VISIT Open year round. Peak visitor month is August. Winters are cool, Summers are hot. POINTS OF INTEREST These cliff dwellings were built in shallow caves under ledges of limestone by Pueblo Indians about 800 years ago. ACTIVITIES Visitor Center; museum/exhibits; self-guiding tours; picnic area. GENERAL INFORMATION It is prohibited to walk off designated trails. The Island Trail includes a 185-foot climb at an altitude of nearly 7,000 feet altitude. A paved foot trail leads to 25 of the cliff dwellings, and the others can be seen from the trail.