Diablo Foothills Regional Park

Diablo Foothills Regional Park is a 1,060-acre property with grasslands, oak woodlands, and sandstone rock formations across rolling terrain. The land adjoins Castle Rock Regional Recreation Area to create a larger interconnected protected area.

Indigenous peoples lived on these lands for centuries before European settlement brought agricultural and ranching uses in the 1800s. The landscape still reflects this layered past in its current vegetation and topography.

The protected land represents a commitment to preserving open space within a densely populated region managed by the East Bay Regional Park District. Walking through the property, visitors encounter the balance between conservation and public recreation that defines the area.

The property is open daily from 5 AM to 10 PM through the Northern Staging Area accessible via Ygnacio Valley Road and Castle Rock Road. Bring plenty of water and wear sturdy shoes, as the rolling terrain offers trails with varying difficulty.

Pine Canyon closes annually from February to August to protect nesting peregrine falcons among the sandstone cliffs. This seasonal closure demonstrates how the property actively manages space for wildlife breeding.

Location: California

GPS coordinates: 37.88250,-121.99600

Latest update: December 14, 2025 13:07