Sugarloaf Ridge State Park

Sugarloaf Ridge State Park is a natural area in the Mayacamas Mountains featuring volcanic rock formations and two prominent peaks with views across the region. The park contains hiking trails, mountain biking routes, and overnight camping facilities for visitors.

The area became a state park in 1964, protecting the region's natural landscape for public use. After closure, community efforts helped restore and reopen the park for visitors.

The Onasáti people first inhabited this region, developing agricultural practices and creating distinctive basketry from local materials.

The park is open year-round and offers trails of different difficulty levels for various skill levels. Bring plenty of water and sun protection since shaded areas are limited and elevation can affect your pace.

An astronomical observatory within the park allows visitors to observe stars and planets through telescopes under clear night skies. This facility attracts people interested in exploring the cosmos from a location far from city lights.

Location: Sonoma County

Location: Napa County

Website: http://sugarloafpark.org/Sugarloaf_Ridge_State_Park/Sugarloaf.html

GPS coordinates: 38.44000,-122.50000

Latest update: December 8, 2025 19:57