4.8
(37)
812
hikers
13
hikes
Family friendly hiking trails in Trione-Annadel State Park are situated on the eastern edge of Santa Rosa, within Sonoma County. The park spans over 5,000 acres, characterized by rolling hills, diverse ecosystems, and unique volcanic rock formations. Its extensive trail system navigates through northern oak woodlands, grasslands, chaparral, and riparian areas, offering varied terrain for hikers.
Last updated: May 14, 2026
5
hikers
11.8km
03:16
190m
210m
Moderate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels.
4
hikers
5.73km
01:42
170m
160m
Easy hike. Great for any fitness level. Easily-accessible paths. Suitable for all skill levels.

Sign up for free
2
hikers
12.3km
03:26
240m
240m
Moderate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels.
2
hikers
20.8km
05:55
540m
330m
Hard hike. Very good fitness required. Easily-accessible paths. Suitable for all skill levels.
1
hikers
22.8km
06:29
510m
540m
Hard hike. Very good fitness required. Easily-accessible paths. Suitable for all skill levels.
Get access to more routes and recommendations from other explorers.
Sign up for free
Already have an account?
Our route recommendations are based on thousands of hikes, rides, and runs completed by other people on komoot.
Start today with a free account
Your next adventure awaits.
Login or Signup
The Ridge Trail is a popular trail in Trione-Annadel State Park. The flowy single track follows a ridge as it leads you up some switchbacks.
1
0
Trail around the southern perimeter of Annadel State Park to Bennet Mountain
0
0
Within this park, there are extensive miles of trails available for hiking, biking, and horseback riding. The landscape comes alive with an array of wildflowers, particularly vibrant during spring. Notably, Lake Ilsanjo stands as a park highlight, offering opportunities for fishing and often attracting anglers.
0
0
Get off the wide forest road onto the quieter hiking trails
1
0
Lake Ilsanjo is a hidden gem in Annadel State Park: it's a small, quiet lake. There are many trails and even some swimming spots.
0
0
Warren Richardson is the main, gradual gravel-paved fire road to the Lake Ilsanjo saddle from the north side of the park. Very pleasant riding in the shade of tall pine and fir trees.
0
0
Trione-Annadel State Park offers a variety of trails suitable for families. This guide features 12 family-friendly hiking routes, ranging from easy strolls to more moderate adventures, ensuring there's something for every family's pace and preference.
For an easy and engaging loop, consider the Channel, North Burma, and Warren Richardson Loop. This route is approximately 5.7 km long with moderate elevation gain, offering a pleasant experience for families. The park's extensive network allows for many shorter, customizable loops as well.
Trione-Annadel State Park is rich in natural beauty. Many trails lead to Lake Ilsanjo, a central attraction perfect for scenic views and wildlife spotting. You'll also encounter diverse ecosystems including oak woodlands, grasslands, and unique volcanic rock formations. Seasonal streams and vibrant wildflower displays in spring add to the park's charm.
Yes, Trione-Annadel State Park is generally dog-friendly, but dogs must be kept on a leash at all times. It's always a good idea to check the latest park regulations on the official California State Parks website before your visit to ensure a smooth outing with your furry family member. You can find more information at parks.ca.gov.
The park is beautiful year-round, but spring (April and May) is particularly special for families due to the spectacular wildflower displays. Winter months offer rushing creeks and seasonal waterfalls after rainfall. Fall brings pleasant temperatures and changing foliage. Summers can be warm, so early morning or late afternoon hikes are recommended.
Absolutely! Many trails in Trione-Annadel State Park offer wonderful scenic views. The varied terrain, from open grassy hillsides to dense woodlands, provides numerous vantage points. Trails around Lake Ilsanjo are particularly picturesque, offering serene lakeside vistas.
Hike durations vary depending on the route and your family's pace. For example, the easy Channel, North Burma, and Warren Richardson Loop can take around 1.5 to 2 hours. Longer, moderate routes like the Canyon, Rough Go and Cobblestone Loop, which is about 12.3 km, might take 3 to 4 hours, allowing for breaks and exploration.
The park's diverse habitats support a variety of wildlife. Families often spot black-tailed deer, western gray squirrels, and various bird species. Keep an eye out for coyotes, raccoons, and occasionally bobcats. The seasonal Ledson Marsh provides habitat for the rare California red-legged frog.
The area is highly rated by the komoot community, with an average score of 4.8 stars. Reviewers often praise the well-maintained trails, the peaceful atmosphere of the oak woodlands, and the beautiful scenery around Lake Ilsanjo, making it an ideal spot for a family outdoor adventure.
While popular, Trione-Annadel State Park's extensive trail network allows for finding quieter spots. Exploring some of the less-trafficked sections of trails, or visiting during off-peak hours (weekdays, early mornings), can help you enjoy a more serene family experience. The Warren Richardson Trail, for instance, offers a lovely experience.
Trione-Annadel State Park has several parking areas. The main entrance off Channel Drive in Santa Rosa provides access to many popular trailheads. There are also other access points around the park's perimeter. Always check for any parking fees or specific regulations upon arrival.


Browse the best Hikes in other regions.