A moment later the sound of another car drifted across the desert floor.

They were on a rock ledge a few feet above a desert floor.

It turned in the sky and smashed down on the desert floor.

A half mile more and they were back on the desert floor.

We flew on for an hour, low over the desert floor.

She took his hand and they walked across the desert floor.

On the other side was a slope that led down to the desert floor.

They had yet to see a single sign of life, present or past, upon the desert floor.

The desert floor looked like the surface of the moon too.

The shuttle was just three thousand feet above the desert floor.