anse pt ed ▁gallery ▁gra ves ▁of ▁the ▁Lo ire ▁region ▁in ▁France ▁share ▁many ▁internal ▁features , ▁although ▁the ▁links ▁between ▁them ▁are ▁not ▁yet ▁fully ▁understood . ▁That ▁they ▁often ▁have ▁an tech amb ers ▁or ▁forec our ts ▁is ▁thought ▁to ▁imply ▁a ▁desire ▁on ▁the ▁part ▁of ▁the ▁build ers ▁to ▁emphas ize ▁a ▁special ▁rit ual ▁or ▁physical ▁separation ▁of ▁the ▁dead ▁from ▁the ▁living . ▁ ▁Meg al ith ic ▁tomb s ▁appear ▁to ▁have ▁been ▁used ▁by ▁communities ▁for ▁the ▁long - term ▁de position ▁of ▁the ▁remains ▁of ▁their ▁dead , ▁and ▁some ▁seem ▁to ▁have ▁under g one ▁alter ation ▁and ▁en larg ement . ▁The ▁organization ▁and ▁effort ▁required ▁to ▁ere ct ▁these ▁large ▁stones ▁suggest ▁that ▁the ▁soci eties ▁concerned ▁placed ▁great ▁emphas is ▁on ▁the ▁proper ▁treatment ▁of ▁their ▁dead . ▁The ▁rit ual ▁significance ▁of ▁the ▁tomb s ▁is ▁supported ▁by ▁the ▁presence ▁of ▁meg al ith ic ▁art ▁car ved ▁into ▁the ▁stones ▁at ▁some ▁sites . ▁H ear th s ▁and ▁depos its ▁of ▁pot tery ▁and ▁animal ▁b one ▁found ▁by ▁arch ae olog ists ▁around ▁some ▁tomb s ▁also ▁implies ▁that ▁some ▁form ▁of ▁bur ial ▁fe ast ▁or ▁sacrific ial ▁r ites ▁took ▁place ▁there . ▁ ▁Further ▁examples ▁of ▁meg al ith ic ▁tomb s ▁include ▁the ▁st alled ▁c air n ▁at ▁Mid how e ▁in ▁Or k ney ▁and ▁the ▁passage ▁grave ▁at ▁Bry n ▁C elli ▁D du ▁on ▁Ang les