Irvine Ranch Open Space

The History of the Irvine Ranch Open Space

On June 29, 2010 the the Irvine Company made a donation of 20,000 acres to Orange County for preservation and guided recreation. OC Parks is in charge of protecting and operating these special, protected wildlands, known as the Irvine Ranch Open Space.

The Irvine Ranch Conservancy manages hiking, mountain biking, equestrian rides, naturalist-guided tours and managed wilderness access days. Other uses are prohibited by the terms of the deed restrictions, conservation easements, County wilderness park designations, and the Orange County Central Coastal Natural Community Conservation Plan permit.

Based on their geological and ecological significance, nearly 40,000 acres of open space on the historic Irvine Ranch, including the 20,000 of the Irvine Ranch Open Space, have been designated a Natural Landmark by both the State of California and the U.S. Department of the Interior. This honor recognizes the exceptional value of these lands to California and the entire nation.

If you visit, you may select from the many free activities offered. In addition to various recreational programs, there are opportunities to participate in scientific research, stewardship and other volunteer activities.

Irvine Ranch Open Space Trail Map

Irvine Ranch Open Space trail map (PDF format 8.5 x 14 – legal paper size)

Irvine Ranch Open Space trail map

Irvine Ranch Open Space trail map

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