A eucalyptus grove at the foot of Malibu Canyon in 1970. Here's the original photo. Check out the caption, which refers to the freeway that was once planned to run up the coast, over the Pacific. The general plan also called for a nuclear reactor in Corral Canyon. No kidding.
For more images of old LA, visit UCLA's amazing (and easily searchable) online collection of photos, "Changing Times: Los Angeles in Photographs, 1920-1990".