Historic Route 66 (southwest section) is a 6.48-mile out-and-back foot trail in Petrified Forest National Park, Arizona. It climbs 184 ft to a high point of 5,782 ft. Difficulty: easy, from the NPS hiking-rating formula.

Open Historic Route 66 (southwest section) on Trailbound's interactive map to see the full route, the elevation profile, today's forecast and any park alerts for Petrified Forest. Petrified Forest has permits or reservations for some areas: see the Petrified Forest page for what's needed.