He tried running, but the rock beneath his feet was moving too quickly.

More rock than the train could move in a season, Tallman.

The rock did not move, and the tension began to mount.

In any case their night vision was so bad they would not have been able to see when another rock moved, quietly this time.

The rocks had moved, she realized, and sighed a little.

I'll come on a good set with a lot of brush and rocks moved hard work!

She hit a rock too big for her to move.

At some point, the rock may break or move.

The rock moved from its place, and then fell back again.

Twice rocks moved under my feet, and I left them just in time to keep from falling.