Bay Checkerspot, Tule Elk, and Serpentine Spring Trail Loop

The best time to visit is during spring (March, April, and May) when the serpentine grasslands burst into color with native wildflowers like California poppies and lupines. This is also when the federally threatened Bay Checkerspot butterfly is active. However, during these months, access to some trails may be by reservation only for docent-led hikes to protect the sensitive ecosystem.

Access to the Máyyan 'Ooyákma – Coyote Ridge Open Space Preserve, where this trail is located, can be restricted. During March, April, and May, access is often by reservation only for docent-led hikes. It's best to check the official preserve website for current access requirements and any potential fees before planning your visit.

The provided information does not specify if dogs are allowed on this particular trail or within the Máyyan 'Ooyákma – Coyote Ridge Open Space Preserve. Given the presence of rare wildlife and sensitive habitats, it's common for preserves to have restrictions on pets. Please check the official preserve regulations before bringing your dog.

The trail traverses unique serpentine grasslands, characterized by golden hues and dotted with boulders. While generally well-graded and wide enough for easy navigation, there are very steep sections, especially on longer variations of the loop. Good hiking boots are highly recommended for these more strenuous parts.

This trail is renowned for its rare species. You might spot the federally threatened Bay Checkerspot butterfly, especially in spring. The preserve is also home to a meandering herd of Tule Elk, deer, coyotes, raptors, mountain lions, and bobcats. In spring, the grasslands are vibrant with wildflowers like California poppies, lupines, mariposa lilies, and the rare Mount Hamilton thistle.

The trail is located within the Máyyan 'Ooyákma – Coyote Ridge Open Space Preserve near Morgan Hill, California. Specific parking details are not provided, but trailheads for open space preserves typically have designated parking areas. It's advisable to check the preserve's official website for directions and parking information before your visit.

Yes, the trail offers sweeping views of the Santa Cruz Mountains to the west and downtown San José to the north. The unique serpentine grasslands themselves, with their distinctive geology and seasonal wildflower displays, are a significant natural landmark.

Yes, the route incorporates sections of several other trails. You'll find yourself on parts of the Bay Area Ridge Trail - 03 - South Bay, the Bay Checkerspot Trail, the Tule Elk Trail, and the Serpentine Spring Trail as you complete the loop.

For the longer, more strenuous sections with significant elevation gain, good hiking boots and poles are highly recommended. For a shorter, moderately difficult trek, comfortable hiking shoes should suffice. Always bring plenty of water, especially since the preserve is known for its exposed grasslands, and be prepared for varying weather conditions.

The trail offers varying lengths and difficulties. A shorter, 3-mile option focusing on the Bay Checkerspot Trail is moderately difficult with over 500 feet of elevation gain. A longer version can be quite strenuous with very steep sections. Families should assess their fitness levels and choose the appropriate segment. Keep in mind that access may be restricted to docent-led tours during spring.

The serpentine soils are unique because their harsh conditions (low nutrients, high heavy metals) have led to the evolution of rare, endemic plant and animal species found nowhere else. This trail protects the largest continuous serpentine grassland in the southern Bay Area, making it a critical habitat for species like the Bay Checkerspot butterfly and various wildflowers.