The Bay Area Ridge Trail: Robert Louis Stevenson Mount Saint Helena Spur horse trail is a 10.5 mile Out & back trail that wanders through the Robert Louis Stevenson State Park and . This trail is accessible in Spring, Summer, Fall, Winter.
The Bay Area Ridge Trail: Robert Louis Stevenson Mount Saint Helena Spur horse trail is a 10.5 mile Out & back trail that wanders through the Robert Louis Stevenson State Park and . This trail is accessible in Spring, Summer, Fall, Winter.