They are sometimes called "accretional mounds", due to the practice of adding more soil to them as more individuals were buried within.
The people added more soil to them as additional individuals were buried within. They are sometimes called "accretional mounds".
They are sometimes called "accretional mounds". The people added more soil to them as additional individuals were buried within.
They are sometimes called "accretional mounds". The people added more soil to them as additional individuals were buried within.