North of McCall in the Payette National Forest, there are miles of Motorized Trails open to off-road motorcycle trails riding.
There are two good trailheads. The Ruby Meadows Trailhead, just south of Burgdorf off FS364, provides access to Trail #141 (first 4 miles open to ATV). The other trailhead is located at the end of FS250 and provides access to Trail #250 (first 3.4 miles open to ATV), Trail #163 (first 5.4 miles open to ATV).
Overall, Morgan Lake / Rainbow Lakes is the 26th most popular dirt bike trail of all 53 dirt biking rides in Idaho.