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In the heart of the Peninsula lies an oasis of tranquility known as Pulgas Ridge Open Space Preserve, a cherished natural gem located in Redwood City, CA. This 366-acre preserve offers a perfect blend of scenic trails, lush woodlands, and expansive ridge-top views, making it one of the most beloved outdoor destinations for hikers, nature lovers, dog owners, and photographers alike. Managed by the Midpeninsula Regional Open Space District, Pulgas Ridge is a rare combination of accessibility and ecological richness.
Pulgas Ridge Open Space Preserve is more than a hiking area—it’s a refuge for both people and wildlife. The preserve's quiet trails provide a peaceful alternative to the bustling pace of the surrounding Bay Area, offering visitors a chance to reconnect with nature without venturing far from Redwood City. Whether arriving for a brisk morning hike, a meditative walk through oak forests, or a family outing with the dog, the preserve offers experiences that leave a lasting impression.
What sets Pulgas Ridge apart is its ability to cater to various activity levels and interests. From steep climbs that reward visitors with panoramic views of Redwood City, CA and the Santa Cruz Mountains, to gentler loops ideal for a relaxed afternoon, the preserve offers something for everyone. Throughout the seasons, it becomes a canvas for nature’s colors—from spring wildflowers to golden fall foliage.
Before becoming an open space preserve, Pulgas Ridge was once the site of the Hassler Health Home, a tuberculosis sanitarium that operated from the 1920s through the 1960s. After the facility was decommissioned, the land was acquired by the Midpeninsula Regional Open Space District in the late 1980s and transformed into the protected natural area it is today. The name "Pulgas" comes from the Spanish word for fleas, a nod to the early explorers who named the nearby creek "Arroyo de las Pulgas."
The transformation of this site into an ecological preserve has played an important role in Redwood City, CA’s commitment to sustainable development and outdoor recreation. The area has been carefully restored to its natural state, with the remnants of old structures now overtaken by native plant life. Restoration efforts have focused on protecting biodiversity, supporting native wildlife, and managing invasive species, ensuring the land remains a thriving habitat for years to come.
The preserve's significance is also cultural. It serves as a reminder of Redwood City’s deep connection to the surrounding landscape, and the effort to balance urban growth with environmental stewardship. Locals value Pulgas Ridge not just as a recreational area, but as a living part of the community's identity.
One of the defining features of Pulgas Ridge Open Space Preserve is its well-maintained network of trails. These range from beginner-friendly paths to more challenging inclines, each offering unique perspectives of Redwood City, CA’s natural beauty.
The Cordilleras Trail is one of the most popular entry points, offering a gradual incline through a shaded canyon filled with bay laurels, maples, and coastal live oaks. The trail connects to the Blue Oak Trail, which climbs to one of the preserve’s highest points and provides sweeping views across the Bay Area, including glimpses of the East Bay hills and the San Mateo Bridge on clear days.
For those seeking a longer loop, the Dick Bishop Trail, named in honor of a former board member of the Midpeninsula Open Space District, offers a scenic and moderately strenuous route that takes hikers through chaparral, open grassland, and oak woodland. It intersects with other trails to allow for custom routes depending on time and energy.
Perhaps the most unique feature of the preserve is its dedicated off-leash dog area. Known as the “Dog Loop,” this section gives pet owners a rare chance to let their dogs explore freely in a safe and monitored natural environment. It’s a favorite among dog walkers in Redwood City, CA, who often return for its blend of open space and community atmosphere.
Pulgas Ridge Open Space Preserve is home to a wide variety of flora and fauna. Depending on the time of year, visitors might spot deer, coyotes, wild turkeys, and even the occasional bobcat moving silently through the brush. Birdwatchers frequent the preserve to observe red-tailed hawks, California quail, woodpeckers, and owls.
Spring is especially vibrant, as wildflowers such as California poppies, lupines, and sticky monkey flowers blanket the hillsides. In summer, the grasses turn a golden hue, while fall brings cooler air and rich earth tones to the forests. Winter offers quieter trails and peaceful mornings often filled with mist and dew.
The ecological diversity of Pulgas Ridge is a testament to Redwood City, CA’s commitment to conservation. Interpretive signage along some trails helps educate visitors on native plant species, wildlife behavior, and the role of local ecosystems. These subtle learning opportunities enhance the experience and deepen the appreciation for the preserve’s natural character.
A visit to Pulgas Ridge Open Space Preserve is best planned with a few key details in mind. The preserve is open from dawn until a half-hour after sunset, and parking is available at the main entrance off Edmonds Road. There are no entrance fees, making it an accessible option for individuals and families looking to enjoy the outdoors without added cost.
Hikers are encouraged to bring water, especially during warmer months, as the trails offer limited shade in some areas. Proper footwear is essential, particularly for those venturing onto the steeper routes. While the preserve does not offer restrooms or food services, it’s just a short drive from downtown Redwood City, where visitors can find a variety of dining options and shops.
For dog owners, waste bags are provided at the trailhead, but carrying extras is always a good idea. It's important to remember that dogs must remain on leash outside the designated off-leash area, and respectful trail etiquette ensures that all visitors, two-legged and four-legged, enjoy their time.
Seasoned hikers and casual walkers alike will find something memorable at Pulgas Ridge. Whether arriving to catch a sunrise over the hills or to enjoy an afternoon among the trees, the preserve offers an escape that feels far from the city, yet remains rooted in the heart of Redwood City, CA.
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