In Mammoth Lakes in the Inyo National Forest, the 11 mile Knolls Loop is a local favorite. The trail starts from the well marked Shady Rest Park on SR203 in town. Themountain bike route is best ridden clockwise and for the first 5 miles follow the blue diamonds. Generally, stay to the right at various intersections, except FS3S08 (aka Sawmill Cutoff).
Overall, Knolls Loop Trail is the 92nd most popular mountain bike trail of all 132 mountain biking rides in California.