Earthworks is a process of terrestrial engineering involving excavation (cut) and movement (fill) of soils and rock for the purpose of grading a site to a designed specification. Earthworks are commonly a preliminary step in construction projects, both in heavy civil construction (roads, bridges, dams, canals, etc.) and vertical construction (site grading for buildings).

Drone use in earthworks projects is increasingly common, as drones can quickly capture the topography of a site, which can be used to calculate stockpile volume measurements and be quickly manipulated to determine cut and fill opportunities.