Any region containing deposits of coal that may be mined.
Something uncovered by archaeological excavation.
Archaeological research that unearths buildings, tombs and objects of historical value.
The act of excavating, or of making hollow, by cutting, scooping, or digging out a part of a solid mass.
An uncovered cutting in the earth, in distinction from a covered cutting or tunnel.
The material dug out in making a channel or cavity.
A site where an archaeological exploration is being carried out.
A cavity formed by cutting, digging, or scooping.