National Geographic : 1941 Jun
©Spence Air Photos In California's Barren Elk Hills the Pattern of Derricks Outlines Roughly the Bordersof the Underlying Oil Deposit Withdrawn from all forms of sale, entry, or settlement by the Federal Government in 1912, this area, since known asNaval Petroleum Reserve Number One, was not developed until 1919. It gets its name from the tule elk, which used to run here. Most of these animals have since been moved toagame refuge intheOwens River Valley, where about 250 of them now live. Oil wells here are about 3,000 feet deep.