▁of ▁Sum ba ▁and ▁N ias ▁in ▁Indones ia . ▁The ▁greatest ▁concentration ▁of ▁meg al ith ic ▁bur ial s ▁is ▁in ▁Korea . ▁Arch ae olog ists ▁estimate ▁that ▁there ▁are ▁ 1 5 , 0 0 0 ▁to ▁ 1 0 0 , 0 0 0 ▁southern ▁meg al ith s ▁in ▁the ▁Korean ▁Pen ins ula . ▁Typ ical ▁estimates ▁hover ▁around ▁the ▁ 3 0 , 0 0 0 ▁mark ▁for ▁the ▁entire ▁pen ins ula , ▁which ▁in ▁itself ▁constit utes ▁some ▁ 4 0 % ▁of ▁all ▁dol m ens ▁world wide ▁( see ▁Dol men ). ▁ ▁East ▁Asia ▁ ▁Northern ▁style ▁N ortheast ▁Asian ▁meg al ith ic ▁trad itions ▁origin ated ▁in ▁n ortheast ▁China , ▁in ▁particular ▁the ▁L iao ▁River ▁bas in . ▁The ▁practice ▁of ▁ere ct ing ▁meg al ith ic ▁bur ial s ▁spread ▁quickly ▁from ▁the ▁L iao ▁River ▁Bas in ▁and ▁into ▁the ▁Korean ▁Pen ins ula , ▁where ▁the ▁structure ▁of ▁meg al ith s ▁is ▁ge ograph ically ▁and ▁chron olog ically ▁distinct . ▁The ▁earliest ▁meg al ith ic ▁bur ial s ▁are ▁called ▁" nor thern " ▁or ▁" table - style " ▁because ▁they ▁feature ▁an ▁above - ground ▁bur ial ▁chamber ▁formed ▁by ▁heavy ▁stone ▁sl abs ▁that ▁form ▁a ▁rect angular ▁c ist . ▁An ▁o vers ized ▁cap stone ▁is ▁placed ▁over ▁the ▁stone ▁sl ab ▁bur ial ▁chamber , ▁giving ▁the ▁appearance ▁of ▁a ▁table - top