Reviewed By: Everettc3 Date Reviewed: 10/24/2010 Review Type: Trail Barefoot Friendliness: 3 Average Location: Flagstaff Pipeline Paradise Road Flagstaff, AZ See map: Google Maps Picture: These pipeline trails span the length of Flagstaff and are basically the same all the way along. Small irritating pebbles on compact dirt. This is wearing on the pads, ecspecially if they are not so tough. Great place to progress and train the feet, just very taxing.