TRAIL (formerly ULTRA) is a 60-page guide that breaks down trail and ultra running. For those looking to learn more about trail running, how to start, staying safe, gear, terrain training, and more. TRAIL will get you on trial for the first time or running your first ultra-marathon. You do not have to race or run an ultra to use TRAIL. All information is general trail running and beginner trail running friendly. You can combine any The Lyss Method Running Program for 5k-50k with TRAIL if you desire. TRAIL builds on Endure and The Lyss Method Running Programs but can also stand alone.