Colorado
Haearn
Aur
Copr
Plwm
Metel
Glo
Ffosfforws
Wraniwm
Nicel
Platinwm
Cobalt
Denver,_Colorado
Mwyn
Arian_(elfen)
Marmor
Glain
Herbert_Hoover
Chwarel
Meteleg
Llechfaen
Diwydiant_llechi_Cymru
Trychineb_Aberfan
Powdwr_gwn
Chwarel_y_Penrhyn
Emrallt
Rheilffordd_Ffestiniog
Chwarel_Dinorwig
Ffracio
Glo_carreg
Streic_y_Glowyr_(1984–85)
Redruth
Deinameit
Camborne
Boulder,_Colorado
Mwyngloddio
Diemyntau_gwaed
Streic_Gyffredinol_y_Deyrnas_Unedig_1926
Dylife
St_Austell
Jâd
Ynys-hir,_Rhondda_Cynon_Taf
Hematit
Broken_Hill
Aspen,_Colorado
Undeb_Cenedlaethol_y_Glowyr
Mwyndoddi
Potosí
Caib
Nitroglycerin
Maes_glo_De_Cymru
Tanchwa_Senghennydd
St_Agnes,_Cernyw
De_Beers
Agreg
Gwennap
Bwrdd_Glo_Cenedlaethol
Mwynfeydd_aur_Dolaucothi
Glofa_Gresffordd
Y_Donbas
Chwarel_Dorothea
Ffederasiwn_Glowyr_De_Cymru
Chwarel_Llechwedd
Chwarel_yr_Oakeley
Maes_glo
Flin_Flon
Coalville
Chwarel_Pen_yr_Orsedd
Chwarel_y_Cilgwyn
Delabole
Trychineb_Glofa'r_Tarenni_Gleision
Smithers,_British_Columbia
Coeur_d'Alene,_Idaho
Telluride,_Colorado
Mwynfeydd_aur_Clogau
Nine_Mile_Point_(Glofa)
Ogofâu_Llechwedd
Cleland
Arvada,_Colorado
Central_City,_Colorado
École_nationale_supérieure_des_mines_de_Paris
Effaith_mwyngloddio_ar_yr_amgylchedd
Leadville,_Colorado
Chwarel_San_José
Chwarel_Bryn_Eglwys
Chwarel_Croesor
Mwynlif
Kellogg,_Idaho
Perranarworthal
Wheal_Kitty
Breckenridge,_Colorado
Ouray,_Colorado
Cripple_Creek,_Colorado
Chwarel_Aberllefenni
Tyrone_O'Sullivan
William_Lewis,_Barwn_1af_Merthyr
Georgetown,_Colorado
Fairplay,_Colorado
Silverton,_Colorado
Lake_City,_Colorado
Libby,_Montana
Idaho_Springs,_Colorado
W._E._Oakeley
Polgooth
The_Boring_Company
Victor,_Colorado
Black_Hawk,_Colorado
Red_Cliff,_Colorado
Alma,_Colorado
Crested_Butte,_Colorado
Silverthorne,_Colorado
Jamestown,_Colorado
Silver_Plume,_Colorado
Rico,_Colorado
Ward,_Colorado
Chwarel_Glynrhonwy
Marble,_Colorado
Gwynfynydd
Chwarel_Graig_Ddu
Montezuma,_Colorado
Bonanza,_Colorado
Chwarel_Minera
Trychineb_argae_Brumadinho
Kelleys_Island,_Ohio
Tuckingmill,_Camborne,_Cernyw
Marblehead,_Ohio
John_Nixon
Chwarel_Diffwys
Portreath
Whiteworks
Bardon_Hill
St_Hilary,_Cernyw
Lanescot
Pegswood
Twnnel_Milwr
Wherrytown
Chwarel_y_Rhosydd
Moodiesburn
Gwiriwr_pwysau
Chwarel_y_Cambrian
Chwarel_Cwmorthin
Pentewan
Chwarel_Braich_Goch
Chwarel_Cwt_y_Bugail
Prospidnick
West_Tolgus
Syr_David_Llewellyn,_Barwnig_1af
Blackhall_Colliery
Chwarel_Maenofferen
Chwarel_Blaen_y_Cwm
Gertrude_Selma_Sober
Trychineb_Abercarn,_1878
Mountaintop_Removal
Butte,_America
Tomenni_glo_risg_uchel_yng_Nghymru
Glofa_Gleision
Chwarel_Ratgoed
Burning_The_Future:_Coal_in_America
Chwarel_Abercorris