| Name | Mineral | OS Sheet |
| Aberdaunant | Lead | SN |
| Aberffrwdd | Mixed | SN |
| Abergwesyn | Lead | SN |
| Allt y Main | Lead | SJ |
| Alltycrib | Mixed | SN |
| Bacheiddon | Lead | SN |
| Blaen Ceulen | Mixed | SN |
| Bleanceulan | Lead | SN |
| Bodcoll | Lead | SN |
| Bolton Hill | Other Rock | SM |
| Bronfloyd | Lead | SN |
| Bryn Posteg | Lead | SN |
| Brynarian | Lead | SN |
| Bryndyfi | Lead | SN |
| Brynfedwen | Lead | SN |
| Bryntail | Mixed | SN |
| Bryn-yr-Afr | Mixed | SN |
| Builth | Other Rock | SO |
| Bwlch | Lead | SN |
| Bwlch Ystyllen | Mixed | SN |
| Bwlchgwyn | Lead | SN |
| Bwlchrhennaid | Lead | SN |
| Caegynon | Lead | SN |
| Camdwrbach | Zinc | SN |
| Camdwrbach | Zinc | SN |
| Camdwrmawr | Lead | SN |
| Castell | Mixed | SN |
| Castle Rock | Lead | SN |
| Cefn Coch | Lead | SN |
| Cefngwyn | Lead | SN |
| Cefn-pawl | Mixed | SO |
| Cerrig Yr Wyn | Lead | SN |
| Ceulan | Lead | SN |
| Ceunant | Lead | SN |
| Clochnant | Lead | SJ |
| Corris | Slate | SH |
| Crawcwellt West | Iron | SH |
| Crickheath Hill | Copper | SJ |
| Cwm Elan | Lead | SN |
| Cwm Mawr | Lead | SN |
| Cwmbrwyno | Lead | SN |
| CWMBYCHAN | Lead | SH |
| Cwmbyr | Lead | SN |
| Cwmdaren | Mixed | SN |
| Cwmerfin | Lead | SN |
| Cwmfron | Lead | SN |
| Cwmrheidol | Lead | SN |
| Cwmsebon | Lead | SN |
| Cwmsymlog | Lead | SN |
| Cwmystwyth | Lead | SN |
| Daren | Lead | SN |
| Dolclettwr | Mixed | SN |
| Drosgol | Manganese | SN |
| Dyfi | Iron | SN |
| Dyfngwm | Lead | SN |
| Dylife | Lead | SN |
| Eaglebrook | Lead | SN |
| East Glogfawr | Lead | SN |
| East Van | Lead | SN |
| Elgar | Lead | SN |
| Erglodd | Mixed | SN |
| Esgair Gadfach | Lead | SN |
| Esgair Hir | Lead | SN |
| Esgair Mwyn | Lead | SN |
| Fairchance | Lead | SN |
| Fedw | Lead | SN |
| Florida | Mixed | SN |
| FRON-FELIN | Lead | SH |
| Frongoch | Mixed | SN |
| Fronlwyd | Silver | SN |
| FRON-VELLAN | Lead | SH |
| Garnwen | Other Rock | SN |
| Geufron | Copper | SN |
| Glogfach | Lead | SN |
| Glyn | Lead | SN |
| Goginan | Lead | SN |
| Gorn | Lead | SN |
| Graiggoch | Lead | SN |
| Grogwinion | Lead | SN |
| Gwaith Goch | Lead | SN |
| Gwaith Yr Afon | Lead | SN |
| Gwestyn | Lead | SN |
| Hafan | Lead | SN |
| Hafodfeddgar | Copper | SN |
| Hendre Felen | Lead | SN |
| Hendre-Ddu | Slate | SH |
| Henfwlch | Lead | SN |
| Hyddgen | Lead | SN |
| Leri Valley | Lead | SN |
| Llancynfelin | Mixed | SN |
| Llandyfan Forge | Iron | SN |
| Llanerchyraur | Lead | SN |
| Llawrcwmbach | Lead | SN |
| Llechwedd Helyg | Lead | SN |
| Lletty Evanhen | Mixed | SN |
| Llwynmalus | Lead | SN |
| Llywernog | Lead | SN |
| Lodge Park | Lead | SN |
| Logaulas | Lead | SN |
| Loveden | Mixed | SN |
| Melinygloch | Lead | SO |
| Middle Mill | Other Rock | SM |
| Mynach Vale | Lead | SN |
| Mynydd Gorddu | Lead | SN |
| Nant Iago | Lead | SN |
| Nant y Garw | Lead | SN |
| Nant Y Ricket | Copper | SN |
| Nant yr Eira | Lead | SN |
| Nantddu | Mixed | SN |
| Nantiago | Mixed | SN |
| Nant-y-Car | Mixed | SN |
| Nantycreiau | Lead | SN |
| Nantyrarian | Lead | SN |
| Ogof Wyddon | Copper | SH |
| Pandy | Lead | SN |
| Pencraigddu | Lead | SN |
| Pengarigddu | Lead | SN |
| Penpontbren | Lead | SN |
| Penrhiw | Lead | SN |
| Penrhyngerwin | Lead | SN |
| Pensarn | Mixed | SN |
| Penybanc | Lead | SN |
| Penycefn | Lead | SN |
| Penyclun | Lead | SN |
| Pen-y-Clun | Lead | SN |
| Plascwrt | Other Rock | SN |
| Plinlimmon | Lead | SN |
| Plynlimon | Lead | SN |
| Pontrhydygroes | Lead | SN |
| Pwll roman | Lead | SN |
| Raby's Furnace | Iron | SN |
| Rhoswydol | Lead | SN |
| Rhyndaston | Other Rock | SM |
| Rhyscog | Lead | SN |
| Siglenlas | Lead | SN |
| Snowbrook | Lead | SN |
| South Nant-y-car | Mixed | SN |
| St David's | Gold | SH |
| Talyllyn | SH | |
| Ty Isaf | Lead | SN |
| Tylwch | Lead | SN |
| Ty'n y Garth | Lead | SN |
| Ty'n Y Wern | Copper | SN |
| Tynewydd | Lead | SN |
| Van | Lead | SN |
| West Fedw | Lead | SN |
| West Nantycreiau | Lead | SN |
| Wheal Neptune | Lead | SN |
| Y Foel | Mixed | SN |
| Yetwen | Other Rock | SN |
| Ynys | Lead | SN |
| Ystumtuen | Lead | SN |
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