Irvine Ranch Open Space

NOW OPEN: Saddleback Wilderness. Access through scheduled programs only.

Enjoy 360-degree panoramic views from the mountains to the sea and explore 3.3 miles of scenic, multi-use trails at Saddleback Wilderness, located at the former site of historic Saddleback Park within the Irvine Ranch Open Space. Hiking, biking and equestrian riding are accessible during scheduled programs only. Wilderness Access allows for self-guided exploration at your own pace. Docent-led guided access takes place in small group tours with engaging interpretation of site features. Advance registration is required and dogs are not permitted. Parking is free.

Saddleback Wilderness is located at 3081 Santiago Canyon Road, Orange, CA.

Irvine Ranch Open Space

The Irvine Ranch Open Space spans 25,000 acres in the Eastern Foothills of Orange County and consists of protected wildlands, including six nature preserves. Named a State and National Natural Landmark, OC Parks stewards these special lands in close coordination with the Irvine Ranch Conservancy as a land management contractor and The Nature Conservancy, a conservation organization. Various educational and recreational opportunities are available through regularly scheduled programs only. When the County received the property, it did so with strict environmental protections already in place to safeguard its rare and precious natural resources. OC Parks continues to uphold the conservation obligations inherited with the property and balances environmental stewardship efforts with robust scheduled access opportunities.

Hiking, biking and equestrian activities within Irvine Ranch Open Space are accessible through monthly self-guided Wilderness Access Days or scheduled programs. Wilderness Access allows for self-guided exploration at your own pace. Docent-led guided access takes place in small group tours with engaging interpretation of site features.

Parking is free and dogs are not permitted, except on Black Star Canyon Road.

Location	Access Information	Activities/Programs
Black Star Canyon (OC Parks Trail System)	Wilderness Access Days. No registration required. Scheduled programs with advance registration.	Black Star Canyon Wilderness Park activities and programs
Black Star Canyon (County Road)	Black Star Canyon Road is always open for public use and access to Cleveland National Forest.	Contact U.S. Forest Service for information on Cleveland National Forest.
Fremont Canyon Nature Preserve	Access through scheduled programs with advance registration only.	Fremont Canyon Nature Preserve programs
Limestone Canyon Nature Preserve	Access through scheduled programs with advance registration only.	Limestone Canyon Nature Preserve programs
Saddleback Wilderness	Access through scheduled programs with advance registration only.	Saddleback Wilderness programs
Weir Canyon Nature Preserve	Access through scheduled programs with advance registration only.	Weir Canyon Nature Preserve programs

A variety of volunteer opportunities are available within Irvine Ranch Open Space. Click here to learn more and get involved.

File	Size	Last Modified
Irvine Ranch Open Space Map.pdf	5.77 MB	April 6, 2021
Saddleback Wilderness_Map.pdf	6.25 MB	March 28, 2023