The Lake Eleanor Open Space is named for an 8-acre freshwater lake located near the center of this 592-acre area. Acquired by COSCA in 1986, this area includes diverse wildlife habitat and scenic resources, rugged hills, prominent rocky outcrops, freshwater marsh habitat, oak woodland and coastal sage scrub. The rocky outcrops are often used by hawks and other large birds as nesting sites, and the area supports several species of rare and endangered plants. Due to the rugged terrain and sensitive resources, only one trail has been developed in this area. It follows the ridgeline east of Westlake Blvd., and can be accessed from Denver Springs Drive.