![](http://www.alamy.com/thumbs/6/43384F13-4EBD-45C2-92CC-0A84BC165E1A/BKMN9Y.jpg)
Sign on last day of work at Deep Navigation Colliery Treharris Mid Glamorgan South Wales UK
Deep Navigation Colliery, at 2280 feet was the deepest pit in the Welsh coalfield, closed in 1991
Size: 5227px × 3491px
Location: Deep Navigation Colliery, Treharris, Mid Glamorgan, South Wales Valleys, Cymru, UK
Photo credit: © Jeff Morgan 03 / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: archive, board, britain, british, closed, closing, closure, coal, coal-mining-archive, colliery, deep, fossil, fuel, gb, glamorgan, great, industrial, industry, job, kingdom, labour, losses, mid, mines, mineworker, mineworkers, mining, national, navigation, ncb, nostalgia, nostalgic, pit, shut, sign, signage, signs, tradition, traditional, treharris, uk, unemployment, united, valley, valleys, village, villages, vote, wales, welsh, work