Irvine Ranch Natural Landmarks

The Irvine Ranch Natural Landmarks are a collection of protected areas in Orange County, California near Irvine. They encompass almost 50,000 acres (20,000 ha) of land which was once a part of the Irvine Ranch owned by the Irvine Company. Almost 40,000 acres (16,000 ha) of the landmarks were designated a National Natural Landmark in 2006 and a California Natural Landmark in 2008.

• http://en.wikipedia.org/wiki/Irvine Ranch Natural Landmarks