The Mitchell and Donner Canyons horse trail is a 8.7 mile Out & back trail that wanders through the Mount Diablo State Park and . This trail is accessible in Spring, Summer, Fall, Winter.
The Mitchell and Donner Canyons horse trail is a 8.7 mile Out & back trail that wanders through the Mount Diablo State Park and . This trail is accessible in Spring, Summer, Fall, Winter.