8AM to Sunset.
Trione-Annadel State Park
UPDATE (March 31, 2020): This park is temporarily closed to the public until further notice, meaning all trails and restrooms within this park are closed.
In an effort to prevent visitation surges and help stop the spread of the coronavirus (COVID-19), State Parks has implemented the following safety measures to date:
A list of closures is available online at parks.ca.gov/FlattenTheCurve. The list is dynamic and updated on a regular basis.
In an effort to prevent visitation surges and help stop the spread of the coronavirus (COVID-19), State Parks has implemented the following safety measures to date:
- Closed some parks, meaning all trails and restrooms within these parks are closed.
- Closed vehicular access at remaining parks, including for off-highway vehicle riding.
- Closed all campgrounds, museums and visitor centers.
- Cancelled all events.
A list of closures is available online at parks.ca.gov/FlattenTheCurve. The list is dynamic and updated on a regular basis.
Phone Number
(707) 539-3911
Park Hours
Driving Directions to Trione-Annadel SP
The park is east of Santa Rosa and south of Highway 12 on Channel Drive via Montgomery Drive. 6201 Channel Drive Santa Rosa, California, 95409Online reservations are not available for this park.
Upcoming Park Events
No events scheduled at this moment.
TRAIL USE
Bike Trails
Hiking Trails
Horseback Riding
Bike Trails
Hiking Trails
Horseback Riding
DAY-USE ACTIVITIES & FACILITIES
Picnic Areas
Env. Learning/Visitor Center
Exhibits and Programs
Fishing
Guided Tours
Interpretive Exhibits
Vista Point
Nature & Wildlife Viewing
Picnic Areas
Env. Learning/Visitor Center
Exhibits and Programs
Fishing
Guided Tours
Interpretive Exhibits
Vista Point
Nature & Wildlife Viewing
OTHER FACILITIES & VISITOR INFORMATION
Parking
Restrooms
Drinking Water Available
Parking
Restrooms
Drinking Water Available
Park Information:
The park, 60 miles north of San Francisco on the eastern edge of Santa Rosa offers miles of trails for hiking, mountain biking, and trail riding.
For wildflower lovers, Trione-Annadel State Park offers a great variety of flowers from early Spring until early Summer, especially on a hike around Lake Ilsanjo. The best months to see the park's wildflowers are April and May, but there are some plants in bloom as early as January and as late as September.
- Dogs are not allowed on trails. Dogs are allowed on a leash under your control only on Channel Drive (a paved road) within the park.
- Model Aircraft (“drones”)/Unmanned Aircraft Systems (UAS)/Glider Use is not allowed in the park per Bay Area District Order No. 660-16-036.
- Electric-Assist or “E-bikes” are considered motorized vehicles and are not allowed in the park.
Fishing Lake Ilsanjo offers excellent fishing for black bass and bluegill. Black bass weighing nine pounds and more have been caught here. A purple plastic worm is a favored bait for the bass, while the bluegill favor garden worms, small crayfish, and grubs. If you are 16 years of age or older, you must have a California fishing license. Ledson Marsh dries up by late August or early September and so no fish are found there.
Location - Directions
The park is east of Santa Rosa and south of Highway 12 on Channel Drive via Montgomery Drive. 6201 Channel Drive Santa Rosa, California, 95409
Latitude/Longitude: 38.4292 / -122.6236
Seasons/Climate/Recommended Clothing
Temperatures during the Summer are in the 80s and 90s. Wintertime highs are in the 50s.
Rainfall averages about 30 inches a year, most of it during the winter and early spring.
Snow is quite rare, and there is little fog.
Facilities and Activities
There is no camping in the park. Fires, campstoves, and barbecues are not allowed.
Note that all plants and wildlife within the park are protected. Collecting or destroying anything in the park, including mushrooms, is prohibited.
Campsites are available at the county campground at Spring Lake and at Sugarloaf Ridge State Park, about ten miles east of Annadel via Highway 12 and Adobe Canyon Road.
Horses and bicycles are allowed only on designated trails. Off-trail riding is not permitted.
Drinking water should be carried on the trails. The water in Hunter Springs is suitable for horses only.
Motor vehicles are allowed only on the entrance road and in the parking lot within the park.
Dogs are allowed only on Channel Drive and in the parking lot. They must be kept on leash at all times and are not allowed on the trails.
Lock your car and take your valuables with you. Don't Litter! If you bring it in, take it back out.
Social Feed
In an effort to protect public health and the safety of our visitors, volunteers and staff as the state responds to the continued threat of COVID-19, California State Parks is temporarily closing the visitor center at Trione-Annadel State Park. While we are not directly affected by COVID-19, we are monitoring the situation carefully and are committed to being responsive and following California Governor’s updated policy on social gatherings to help slow the spread of COVID-19. The park will remain open for all other activities such as trail use. We recognize the importance of visiting Trione-Annadel State Park represents an opportunity to get outdoors and enjoy fresh air with family and friends and escape from our daily routines. We apologize for any inconvenience this may cause your visit. We thank you for your patience, trust and continued support. We’d also like to thank our volunteers and staff for their commitment and dedication as public servants through these challenging circumstances.
In an effort to protect public health and the safety of our visitors, volunteers and staff as the state responds to the continued threat of COVID-19, California State Parks is temporarily closing the visitor center at Trione-Annadel State Park. While we are not directly affected by COVID-19, we are monitoring the situation carefully and are committed to being responsive and following California Governor’s updated policy on social gatherings to help slow the spread of COVID-19. The park will remain open for all other activities such as trail use. We recognize the importance of visiting Trione-Annadel State Park represents an opportunity to get outdoors and enjoy fresh air with family and friends and escape from our daily routines. We apologize for any inconvenience this may cause your visit. We thank you for your patience, trust and continued support. We’d also like to thank our volunteers and staff for their commitment and dedication as public servants through these challenging circumstances.