I had to make a presentation of personal artwork recently so I was digging through some older work -- this one was exhibited in the California State Fair in Sacramento a few years back. Quite a few years actually.
Malibu Creek State Park is where the television show M.A.S.H. was shot, as well as numerous movies, including Planet of the Apes (Charlton Heston version). I did not see any "filthy apes" while I was there though -- just hills.