This is a picture of an evaporation pond, located near the tiny and remote community of Amboy. When much of the water evaporates, the remaining salty sludge, used for a variety of odd commercial uses, is pumped into tanker cars on a train and shipped around the United States. Famed Route 66 is a few miles to the north.

Camera: Rolleiflex T, with a small f/stop to hold depth of field.