Attractions and Places To See in Sierra Azul Open Space Preserve - Top 17

The preserve is home to prominent peaks like Mount Umunhum, offering breathtaking 360-degree views, and Mount El Sombroso. You can also see the distinctive Mount Umunhum Road (climb) which leads to the former Cold War-era radar tower. The preserve also overlooks Lexington Reservoir and features diverse landscapes including dense forests, grasslands, and riparian corridors.

Mount Umunhum is a sacred site to the Amah Mutsun people, and visitors can learn about Native American history through interpretive displays at the summit. The preserve also contains the former Almaden Air Force Station, with its iconic radar tower, which was operational during the Cold War. Historically, German and Austrian refugees settled in the area in 1870, developing orchards and vineyards near the New Almaden Quicksilver mining operations.

The preserve offers diverse experiences throughout the year. Spring brings wildflowers, while cooler months are ideal for strenuous hikes. Summer can be hot, especially at higher elevations, so an early start is recommended. Always check weather conditions before your visit.

While many trails can be challenging, some sections or shorter loops might be suitable for families. The Woods Trail, for example, is a well-graded fire road that offers an introductory hike with views of wildflowers, birds, and butterflies. It can be extended to connect with other trails for longer walks.

Sierra Azul is known for its rich biodiversity. You might spot wildlife such as mountain lions, deer, bobcats, and coyotes. The diverse habitats, including serpentine grasslands, rocky chaparral, and wooded creek canyons, support nearly 350 species of flowering plants.

Parking is available at various trailheads. For instance, the Kennedy Road Sierra Azul Trailhead has a small parking area and a portable toilet. Additional parking can often be found at the top of Top of the Hill Road for certain access points. Always check specific trailhead information for parking availability.

The preserve offers a range of trail difficulties. Trails like the Priest Rock Trail are considered intermediate, popular with both mountain bikers and hikers. The climb up Mount Umunhum Road (climb) is challenging, with steep sections. Many trails are multi-use and vary in elevation gain and terrain.

Yes, many trails in Sierra Azul Open Space Preserve are dog-friendly. Always ensure your dog is on a leash and follow all posted regulations to protect wildlife and other visitors.

Sierra Azul Open Space Preserve is excellent for various outdoor activities. You can find numerous road cycling routes, such as the Eureka Canyon Loop, or explore gravel biking options like the Lexington Reservoir – Los Gatos Creek Trail loop. For more details on routes, visit the Road Cycling Routes in Sierra Azul Open Space Preserve or Gravel biking in Sierra Azul Open Space Preserve guides.

Absolutely. The preserve is known for its challenging climbs, particularly the Mount Umunhum Road (climb). This well-paved road leads to the summit of Mount Umunhum, offering a significant workout with spectacular 360-degree views. Another challenging section is the Hicks Road Climb.

Visitors particularly enjoy the spectacular 360-degree views from the summit of Mount Umunhum, stretching from the Pacific Ocean to the Sierra Nevada and across the entire Bay Area. The challenging climb to the top is rewarded with these panoramic vistas, along with modern restrooms, drinking water fountains, and viewing terraces.

The preserve offers 26 miles of multi-use trails suitable for hiking. Popular options include the Mount Umunhum Trail, a 3.9-mile path leading to the summit, and the Bald Mountain Trail, which offers expansive views of the Almaden Valley. The Priest Rock Trail is another popular gateway route into the preserve.