Definition

One of the bits of leather, cloth, etc. indicat­ing a specified length of a LEAD LINE. A charted conspicuous object, structure, or LIGHT serving as an indicator for guidance or warning of a craft; a BEACON. A definite object ,such as an imprinted metal disk, used to designate a survey point and sometimes refers to the entire survey monument. Mark is used with a qualify­ing term such as station, reference, azimuth, or bench. See also BENCH MARK and REFERENCE MARK.