Aerial view of La Brea tar pits and oil derricks, circa 1924. Seen from the air you have to look carefully at the foreground (across the road from the buildings) to see the pits among the trees, along with a building in the trees. A few pits can be seen in open area. At the top of the picture are a few of the derricks from the oil field. (Security Pacific National Bank Collection; Los Angeles Public Library)