19. Stevens Creek Nature Trail and Canyon Trail.
Gaze at Mount Umunhum from a vista point, then descend into a forested creek canyon and loop back through open grasslands.
WHERE: Monte Bello O.S.P., south side Page Mill Rd., 1 1/2 miles east of State 35.
DISTANCE: 3 miles.
DIFFICULTY: Easy to moderate.

20. Black Mountain summit.
Follow the Canyon and Indian Creek Trails to the summit of 2,800-foot Black Mountain, the highest point on Monte Bello Ridge. Return via the Old Ranch Trail and Bella Vista Trail.
WHERE: Monte Bello O.S.P., south side Page Mill Rd., 1 1/2 miles east of State 35.
DISTANCE: 5 1/4 miles.
DIFFICULTY: Moderate.

21. San Andreas Fault Trail.
Visit one of the world's longest and most active earthquake faults. A brochure interprets visible fault indications along the trail.
WHERE: Los Trancos O.S.P., north side Page Mill Rd., 1 1/2 miles east of State 35.
DISTANCE: 1 1/2 miles.
DIFFICULTY: Easy.

22. Franciscan Trail and Lost Creek Trail.
A figure-eight loop descends to a shady bay and oak forest along Los Trancos Creek, then returns through flower-filled grasslands.
WHERE: Los Trancos O.S.P., north side Page Mill Rd., 1 1/2 miles east of State 35.
DISTANCE: 2 1/2 miles.
DIFFICULTY: Easy.