He pointed to a corner where the floor dropped sharply behind rough rocks.

Beyond it, the tunnel continued for another eight feet or so, but ended in a rough rock and dirt surface.

In his hands he clutched a dull, rough rock.

The next item he picked up was a small rough rock.

Inside, the air turned almost cold, and she put her hand against the rough rock of the ceiling, trying to get her bearings.

This refers to cutting shapes from the rough rock, before tumbling.

He stretched out his hand to touch the rough, hard rock.

Looking up, I saw rough rocks projecting above us in a sort of ladder.

The large sign was affixed to a wall of rough, jagged rock that ended the mountain road.

He eased himself over a few feet and sat down with his back against a rough rock, then took a drink from his water bottle.