Sam McDonald County Park offers over 800 acres of diverse forests and grasslands with extensive trails perfect for hiking, mountain biking, horseback riding, and wildlife observation in San Mateo County, California.
Sam McDonald County Park spans 867 acres in the Santa Cruz Mountains of San Mateo County, California. The park features a mixture of redwood, Douglas fir, and mixed evergreen forests alongside open grasslands that provide scenic vistas of the surrounding hills. Originally part of a large land parcel owned by rancher Sam McDonald, this county park was established to preserve open space and provide outdoor recreational opportunities to local residents. Visitors can explore more than 14 miles of multi-use trails that wind through varied terrain including shaded canyons, ridgelines, seasonal creeks, and native oak woodlands. The park’s diverse ecology supports wildlife such as black-tailed deer, gray foxes, and numerous bird species including woodpeckers and owls. Sam McDonald is a favored destination for hiking, mountain biking, horseback riding, and picnicking, with less crowded trails than nearby state parks. Notable landmarks include the Devils Slide Trail, which offers panoramic views of the San Francisco Peninsula and the Pacific Ocean on clear days, and the historic Niehls Ranch area. Visitors appreciate the park’s peaceful atmosphere, accessible trails, and natural beauty, making it a valued outdoor resource near the Bay Area. The park also connects to neighboring parks forming a network of regional open space that protects important habitat corridors.
Devils Slide Trail viewpoint with sweeping vistas of the Pacific Ocean and Santa Cruz Mountains
Diverse ecosystems including redwood groves, oak woodlands, and grasslands
Historic Niehls Ranch area with remnants of early 20th century ranching culture
Quiet, less-trafficked multi-use trails suitable for mountain biking and horseback riding
A popular trail leading to expansive views across ocean and mountains, featuring a mix of shaded forest and open ridgelines.
Historic ranch land preserved within the park area, showcasing regional ranching heritage and pastoral landscapes.
Stands of mature redwoods and Douglas fir create cool, shaded environments supporting rich biodiversity.