Inner Basin Trail - Long

The Inner Basin Trail - Long is a 12.4 km trail that starts in Flagstaff, Flagstaff, Arizona. Based on our data, the hike is graded as Medium. For information on how we grade trails, please read measuring the difficulty of a hiking trail on hiiker. Also, check our latest community posts for trail updates. This hike can be completed in approx 3 hrs 38 mins. Caution is advised on trail times as this depends on multiple variables. For more info read about how we calculate hike time.