The exhibit, "Ecological L.A.: Earth Day in the Urban Environment," highlights fragile San Fernando Valley ecological environments such as the Los Angeles River, the Chatsworth Reservoir and the Tujunga Wash.

The exhibit is open to the public and is located on the second floor in the west wing of the Oviatt Library, which is near the center of campus at 18111 Nordhoff St. in Northridge.

The exhibit is co-sponsored by the California Native Plant Society, the Friends of the Los Angeles River and the Friends of the Oviatt Library.