excavation Synonyms

mining dig digging diggings trench scooping removal cut pit archeological site digging up trough tunnel tunneling underbuilding unearthing valley trenching paleontology picking pothole quarry quarrying shaft shoveling sinking terracing paleology borrow pit digs slit trench spadework pits hollowing out rediscovery Pitt palaeontology strip mine mineshaft deracination nullah coalfield coalface earthmoving mines pithead antiquarianism concaveness concavity crater