This industry comprises establishments primarily engaged in performing surveying and mapping services of the surface of the earth, including the sea floor. These services may include surveying and mapping of areas above or below the surface of the earth, such as the creation of view easements or segregating rights in parcels of land by creating underground utility easements. Illustrative Examples: Cadastral surveying services Mapping (except geophysical) services Cartographic surveying services Topographic surveying services Geodetic surveying services Cross-References. Establishments primarily engaged in--