As the sun dipped behind the mountains, we drove out on Silver Dry Lake, north of Baker, to examine the margin of a playa. Here the sediment grades rather abruptly from coarse pebbles to silt and clay. Whenever you see an auto commercial that shows the car on a dry lake, this is most likely the place where the commercial was made. The clay surface was very hard and smooth. The group seems to be searching for the best route to take to Baker.