digital elevation model of mine with stockpiles

aerial aggregates agronomy cartography construction dem development digital drone dtm elevation engineer engineering excavation geodesy geodetic geology georeferencing geospatial gis graphic gsd hypsometric industry inspection investigation land made map mapping maps mine model modeling multirotor orthorectification orthorectified photogrammetry pictures proccesing product professional quarry rock shows site space steep stockpiles survey surveying taken technology terrain top topographic topography