Trione-Annadel State Park
- Park
- Regional draw
- Santa Rosa
Volcanic rock, oak woodland, and a broad natural landscape shape Trione-Annadel State Park beside Santa Rosa. The terrain's long relationship with Indigenous use, quarrying, and later recreation adds context to an outing that today centres on trails and habitats.
Select a route from current state-park information and check trail and weather notices before setting out. Prepare for uneven ground and carry water; distances and elevation make advance planning more useful than choosing a trail on arrival.
Visitor details reviewed October 17, 2026. Check official visitor information for current access, admission, and operating arrangements. View on OpenStreetMap.
Image credit: Brian Michelsen from Santa Rosa, California, USA / Wikimedia Commons. Original source. CC BY 2.0. Resized and converted to WebP; may be cropped for display.
Nearby
More places nearby
Spring Lake Regional ParkSanta Rosa's Spring Lake Regional Park centres on a reservoir landscape with trails and a range of recreational areas. It offers a practical outdoor destination beside Trione-Annadel, with options that differ from the steeper routes in the neighbouring state park.
Luther Burbank Home and GardensLuther Burbank's former home, greenhouse, and gardens preserve a horticultural legacy in central Santa Rosa. The site combines the setting of his working life with living plants, making it a distinctive stop for visitors interested in both local history and gardens.
Museum of Sonoma CountyIn downtown Santa Rosa, the Museum of Sonoma County brings regional history and art into a campus that includes the historic post office. Its galleries and sculpture garden connect the surrounding county's stories with the work of local artists.
Charles M. Schulz MuseumSanta Rosa's Charles M. Schulz Museum examines the work of the artist behind Peanuts. Original comic strips, changing exhibitions, and large installations connect familiar characters with the drawing practice and long creative career that produced them.
Bothe-Napa Valley State ParkBothe-Napa Valley State Park offers woodland trails and shaded outdoor recreation between Calistoga and St.