Arizona's 20 highest peaks and 20 deepest canyons.

READ THIS FIRST: This web site and all its contents--including maps, directions, hike descriptions, and safety advisories--are offered solely as promotional materials and helpful guidelines. The AZ 20-20 website is no longer being actively maintained and updated. Most content was last updated in 1999. Trails and trailheads are subject to change by land managers and/or natural processes. We therefore strongly advise you to check with the land managers to obtain the latest maps and check current hiking and weather conditions. Hiking is an inherently dangerous activity, especially in the desert and/or at high altitudes. Hikers must use good judgment, be prepared, know their own limits and those of other group members, and take responsibility for their own safety. The authors, Arizona State University, and Arizona Office of Tourism assume no responsibility for any problems that may occur in using this guide.