ward ", ▁a ▁six - cou ple d ▁s add let ank ▁was ▁bought ▁from ▁Haw th orn ▁Les lie ▁in ▁ 1 9 1 6 . ▁" Black ▁Diam ond " ▁and ▁" New town " ▁were ▁transferred ▁from ▁other ▁Cl if ton ▁and ▁K ers ley ▁p its ▁in ▁the ▁ 1 9 2 0 s . ▁After ▁ 1 9 2 9 ▁the ▁Ast ley ▁Green ▁was ▁on ▁Manchester ▁Col lier ies ' ▁Central ▁Railway ▁system ▁based ▁on ▁Walk den ▁Y ard . ▁ ▁Inc ident ▁There ▁was ▁a ▁min ing ▁accident ▁at ▁the ▁col li ery ▁on ▁ 6 ▁June ▁ 1 9 3 9 , ▁when ▁there ▁was ▁an ▁explos ion ▁of ▁fired amp . ▁Men ▁had ▁been ▁fighting ▁an ▁under ground ▁fire ▁over ▁a ▁mile ▁from ▁the ▁pit ▁bottom . ▁Despite ▁the ▁efforts ▁of ▁the ▁mines ▁rescue ▁teams ▁from ▁Bo oth st own ▁M ines ▁Res cue ▁Station , ▁who ▁were ▁driven ▁back ▁by ▁further ▁explos ions , ▁five ▁men ▁including ▁the ▁manager ▁died . ▁ ▁Museum ▁Work ▁is ▁currently ▁being ▁undert aken ▁to ▁create ▁a ▁narrow ▁gauge ▁railway ▁at ▁the ▁site ▁for ▁visitors ▁ ▁See ▁also ▁List ▁of ▁col lier ies ▁in ▁Ast ley ▁and ▁Ty ld es ley ▁G loss ary ▁of ▁coal ▁min ing ▁termin ology ▁ ▁References ▁ ▁Notes ▁ ▁Cit ations ▁ ▁Bibli ography ▁ ▁External ▁links ▁Ast ley ▁Green ▁Col li ery ▁Museum ▁website ▁ ▁History ▁of ▁Ast ley ▁Green ▁Co al ▁Mine ▁ ▁Category : Co al ▁mines ▁in ▁Lanc