im ▁group ) ▁is ▁a ▁Chal col ith ic ▁culture ▁that ▁der ives ▁its ▁name ▁from ▁the ▁town ▁of ▁Al the im . ▁It ▁is ▁also ▁a ▁subgroup ▁of ▁L eng y el ▁culture . ▁ ▁Not ▁defined ▁until ▁ 1 9 1 5 ▁by ▁the ▁German ▁Pre histor ian ▁Paul ▁Re ine cke ▁after ▁finds ▁from ▁a ▁C ause way ed ▁en closure ▁ 1 0 0 0 ▁m ▁n w ▁of ▁Al the im ▁( E ss en bach ), ▁Land sh ut ▁( d istrict ), ▁in ▁Lower ▁Bav aria , ▁S out he astern ▁Germany . ▁ ▁The ▁Al the im ▁culture ▁sites ▁range ▁from ▁the ▁Inn ▁( river ) ▁in ▁the ▁East ▁to ▁the ▁Le ch ▁( river ) ▁in ▁the ▁West ▁and ▁from ▁the ▁Alb ▁hills ▁in ▁the ▁North ▁to ▁the ▁fo oth ills ▁of ▁the ▁Al ps ▁in ▁the ▁South . ▁ ▁The ▁Al the im ▁culture ▁dates ▁to ▁between ▁ 3 8 0 0 ▁and ▁ 3 4 0 0 ▁BC , ▁i . e . ▁the ▁Young er ▁Ne ol ith ic ▁of ▁Southern ▁Central ▁Europe , ▁formerly ▁called ▁the ▁Chal col ith ic . ▁ ▁Contempor aneous ▁phen omena ▁are , ▁to ▁the ▁West ▁Pf yn ▁culture ▁in ▁sw ▁Germany ▁and ▁Switzerland , ▁to ▁the ▁North west ▁and ▁North ▁Mich els berg ▁culture , ▁to ▁the ▁East ▁Ba al ber ge ▁group ▁in ▁Boh emia ▁and ▁to ▁the ▁S out heast ▁Mond see ▁group . ▁ ▁Category : Ne ol ith ic ▁cult