Photos of some of the significant mines in Mid Wales and the work carried out by Natural Resources Wales to investigate and deal with the pollution from these mines.

FG7   WE5   CR32

Frongoch

Wemyss

Cwm Rheidol

CY   NM2   DY1

Cwmystwyth

Nant y Mwyn

Dylife

EM4   AC6   CS14

Esgair Mwyn

Abbey Consols

Other mines

Most of these photos were provided by Natural Resources Wales (NRW) but this is not an official NRW website.