Trione-Annadel State Park

Annadel State Park is a perennial favorite among outdoor enthusiasts, featuring more than 40 miles of multi-use trails that meander through oak woodlands, volcanic rock outcroppings, and seasonal wildflower fields. The park's varied landscape allows hikers to choose their own adventure, whether it's a moderate loop around Lake Ilsanjo or a longer journey up to the views from Bennett Mountain. The San Francisco Chronicle and Bay Nature Magazine both highlight Annadel’s unique blend of ecological diversity and accessible beauty, making it a must-visit for those seeking an authentic Sonoma hiking experience. Managed by California State Parks and supported by local volunteers, it remains a cherished community resource.