The mine consists of a clear corridor, often with a hairpin turn.

The mine consists of a long corridor that runs though the leaf two to three times.

The mine consists of a narrow corridor, often following the leaf margin.

The mine consists of a corridor that makes a loop through the entire leaf.

It consisted of a great court, a corridor, a chapel and a burial chamber.

The mine consists of a short corridor, generally along the midrib.

This floor, like the others, consisted of a corridor with rooms on either side.

The mine consists of a corridor with a central frass line.

The facility consisted of a very long corridor with offices to the left and right.

The first mezzanine consists of a corridor that goes all the way around the building.