This applied to many houses in the street, presumably brought about by the making up of the road with gravel over a long period.

The floor, on several levels, is lined with white gravel.

The picnic area had been cut into the woods and laid with gravel.

The trench may be entirely filled with gravel or only part way.

The paths in between are usually laid with fine gravel.

They touched down on a circular place covered with white gravel.

His health began to break in 1697, when he was troubled with gravel.

He'd returned the next day to cover it all with gravel and put the boat in place.

The book ($1,200) comes in a black box made of paper covered with sand and gravel.

By late 1897 the road had been surfaced with gravel.