EntityQ1349587· pop 12· linked from 732 articlesearthworksSign in to saveartificial changes in land level found in archaeology and fortificationsConnectionsSerpent MoundEntityFranceCountryUnited KingdomCountryPolandCountrySomaliaCountryUgandaCountryFloridaEntityIllinoisEntityOhioEntityWest VirginiaEntityarchaeologyEntityStone AgeEntityAmerican Civil WarConceptInternational Standard Book NumberEntityBronze AgeEntityIron AgeEntityNeolithicEntityhectareEntityHorn of AfricaEntityEureEntityCategoriesArchaeological features