Barrow is a mound of dirt, or of dirt and stone, found in the United Kingdom and Ireland that contains or covers ancient burials. Ancient people constructed barrows from the Neolithic, beginning about 4000 B.C., until the beginning of Saxon rule, about A.D. 450 to 500. The remains of barrows can still be seen today. The West Kennet long barrow in Wiltshire, England, ranks as one of the largest. It measures 351 feet (107 meters) long and 75 feet (23 meters) wide and has several chambers that contained burials. Other ancient burial mounds, called tumuli (singular, tumulus) by archaeologists and historians, appear throughout the world.
