They turned, and began to clamber further up the crater wall.

Worse than that, it was quite a long way up the crater wall.

Groups of men spread out on foot to investigate the crater walls.

"Why not just blow an opening in the crater wall?"

As she watched, it touched down on the crater wall.

Ten degrees away from them, inside the crater wall, a rock worked loose and fell.

It was there when their ancestors climbed the crater wall and came.

The water could then flow out onto the surface when it reaches a break, like a crater wall.

The six old friends walked down together into the shadow of the eastern crater wall.

Actually, Jimmy wasn't supposed to exercise along the dark side of the crater wall.