Grand Falls is a 18.6 mile out and back trail located near Leupp, AZ that features a waterfall. The trail is good for all skill levels and primarily used for mountain biking.
Most surreal waterfalls I've ever had the opportunity to experience in Arizona. Only flows seasonal so just make sure you go at the right time!
I just could not believe how big this waterfalls is. It is so remote on the Navaho reservation. The hike down to the bottom is very steep with 3-4 foot steps. Not easy for the average hiker. The water does not run except during the snow melt and after heavy rains. It is dry most of the time, but when it is running, wow!