Sierra Vista and Upper Calaveras Fault Trail Loop

This loop, as mapped on komoot, typically takes around 2 hours and 16 minutes to complete. However, your actual time may vary depending on your pace, stops for photos, and breaks.

The komoot tour for the Sierra Vista and Upper Calaveras Fault Trail Loop is rated as moderate. While it features varied terrain and some significant elevation changes, including steep sections, it is generally manageable for hikers with a reasonable fitness level. Some parts can have grades up to 20%.

Parking is available at the Sierra Vista Open Space Preserve. It's advisable to arrive early, especially on weekends, as parking lots can fill up quickly. There are no shuttles mentioned for this specific trailhead.

Yes, dogs are generally allowed in the Sierra Vista Open Space Preserve. However, they must be kept on a leash at all times to protect wildlife and ensure the safety of other trail users.

The trail can be enjoyed year-round, but spring offers lush green hills and wildflowers, while fall provides cooler temperatures. Summer hikes are best started early in the morning to avoid the heat, as many sections are exposed. Winter can bring muddy conditions after rain.

No, there are typically no entrance fees or permits required to access the Sierra Vista Open Space Preserve or to hike this loop trail.

Hikers are treated to expansive and spectacular views throughout the loop. You'll see vistas of the Santa Clara Valley, surrounding meadows, and hillsides. On clear days, you might catch glimpses of the San Jose Bay. Sunset views over the mountains are also a highlight.

The trail offers several interesting features. You'll find the Sierra Vista Viewpoint and another View of the Hills from Sierra Vista Trail. A unique aspect is that the Upper Calaveras Fault Trail runs directly along the Calaveras Fault line. You'll also cross a Wooden Bridge on Upper Calaveras Fault Trail.

Yes, this route is part of a larger trail network. It includes sections of the Bay Area Ridge Trail - 03 - South Bay, the Upper Calaveras Fault Trail, and the Sierra Vista Trail. You'll also encounter parts of the Cut Off Trail, Aquila Loop Trail, and Kestrel Trail.

Yes, the trail research indicates the presence of a "Cutoff Trail" which allows hikers to shorten the loop if desired. This can be a good option if you want a less strenuous or quicker hike.

Given the varied terrain and exposed sections, wear sturdy hiking shoes, layers of clothing, and sun protection (hat, sunscreen). Bring plenty of water, as there are no water sources on the trail, and snacks. Trekking poles can be helpful for steep ascents and descents.