Bay Area Hiker: Sierra Azul Open Space Preserve

Choose from two Sierra Azul Open Space Preserve trailheads and hikes

Bald Mountain Trail
Hike One: 1.4 miles out and back to a viewpoint on Bald Mountain

Beginning from a rough pullout at the (publicly accessible) end of Mount Umunhum Road, this easy out and back hike passes through chaparral and grassland and leads to a pretty viewpoint.

High points: Easy stroll with great views of Umunhum and the surrounding area.

Low points: Tough parking and no connecting trails. Often feels lonely up here (and not in a good way).

View photos from this hike

Woods Trail
Hike Two: 5.4 miles out and back on Woods Trail

Sierra Azul's only "proper" trailhead is the starting point for a wonderful introductory hike to this preserve. The well-graded, broad fire road ascends through woods and pockets of grassland to the turn-around point. Coming and going look for wildflowers, birds, butterflies, and some good views.

High points: Nice trailhead and great hike with moderate effort.

Low points: No loops available. May be too short for some; the hike can be extended, but trails get steeper and rolling past the turn-around point.