We honestly expected that big boulder to come rolling down after us at any minute.

Me, I was sizing up a big boulder and getting an idea.

Where the wall had blown out was a pile of big boulders.

There was a particularly big boulder ahead of us.

Four or five big boulders are about all it's going to take.

We had no chance of scrambling back up the hill and across the big boulder before the dogs would be on us.

This time, he vanished into the shade of the big boulder to his right.

Up over a big, misshapen boulder and down below another one.

He lay only a few feet from the far edge of the wood, next to a big gray boulder.

Standing in the heat, with big boulders all around him, he pushed it.