Sovereign Singletrack is a 11.3 mile heavily trafficked loop trail located near Moab, UT that features beautiful wild flowers and is rated as difficult. The trail offers a number of activity options and is accessible from March until October.
This is one of my all time favorite rides in the Moab area. It has it all; singletrack, slick rock, super technical obstacles, and fast descents. There are enough easy sections to keep intermediate riders from getting frustrated, but plenty of obstacles that are tough enough to challenge the best riders.