Photograph of an aerial view of the Los Angeles Union Stockyards in Vernon California, 1940. They were built in 1923 and closed in 1958. A large building stands at center with an elaborate, circular driveway in front of it. The driveway is lined with automobiles and decorated with tall palm trees. Behind the large building lie hundreds of identical plots spotted with small buildings. A street extends from the right foreground to the right background. A second street intersects the first in the right foreground and extends to the left foreground.