land surveying and prism

accuracy angle archaeological archaeologist archaeology archeology azimuth business calculate calculation cartographer cartography computer construction display engineer engineering equipment field fieldwork finder geodesy geodetic geologic geology global head high instrument keypad keys land lens level leveling manual map maps measure measurement measuring meter metric modern optics outdoor positioning precise precision prism range reading reflector rod set setting staff survey surveying surveyor swivel system target technology terrain theodolite topography triangulation tripod work worker working