Wildfire Resilience
Wildfire Preparedness Activities
California State Parks is committed to working together with local fire agencies and other partners to regularly conduct the following ongoing fire prevention activities at Trione-Annadel State Park:
- Defensible space maintenance is routinely conducted by the California State Parks around park facilities and high use areas to protect this infrastructure
- Roadside vegetation maintenance regularly occurs to provide access for emergency responders along fire roads within the park.
- Vegetation clearance around electrical infrastructure and associated maintenance work is conducted by the Pacific Gas & Electric Company and its contractors in close coordination with California State Parks
- Neighboring Properties can work with State Parks to obtain a right of entry permit to conduct defensible space work on California State Parks land when their structures are within 130 feet of the park boundary. For more information contact: BayAreaNaturalResources@parks.ca.gov
Wildland Vegetation Stewardship Work
California State Parks has a long history of conducting vegetation stewardship work at Trione-Annadel State Park, including work that is focused on enhancing the resilience of the park’s vegetation communities to fires. This work includes the following:
Invasive Species Management to protect biodiversity and reduce fire severity.
- Removal of eucalyptus, broom and other invasive plant species that outcompete and replace native plant communities and can increase fuel loading and fire behavior
Targeted Fuel Reduction work occurs in specific wildland areas when conditions warrant. This work may support preservation of sensitive habitats and plant communities, the management of invasive plant species and the preservation of historic or culturally significant landscapes. This work includes:
- Expanded vegetation management and road clearance completed along most of the Park's fire roads between 2021 and 2024.
- Expanded vegetation management along trails that follow the Park's boundary with neighboring communities, including portions of Ridge and Two Quarry Trails
Prescribed Burning is a tool used that is used in support of the efforts mentioned above.
- Prescribed burns have taken place accross approximately 20% of the park, intermittently since 1982 to reduce fuel loading and support stewardship of grasslands and oak woodlands
- Prescribed Burns have most recently taken place in the southern portions of the park near Ledson Marsh in 2024
- Pile burning has taken place in multiple areas of the park since the 1980s, with over 3,400 piles burned between 2022-2026 in support of broadcast burn preparation and fuel reduction efforts

