In most places the clear surface extended straight into the slit between the city and the flat gray plain.

The surface of the ocean extended to the horizon, featureless.

The beam ate a hole in the wall and Bell could see that a dark surface extended deeper behind the line into the stone.

The chalky surface extended into the dark gray interior, all the way through the core.

The flat surface extended several hundred meters to the south, west, and east.

The farm's surface extended as far as we could see toward the northeast of the prison.

The surface of the water is flat, and must extend to Infinity.

The horizontal surface in front of the seats extended almost three feet to where the blank screen began.

If such a surface extends indefinitely it is called an apeirohedron.

The road's concrete surface extended to the solid rock on either side.