UK Grid Reference: ST131952
Latitude: 51°38'54"N
Longitude: 3°15'22"W
Located at Ystrad Mynach near Hengoed, the colliery was sunk by the Powell Duffryn Company in 1905. The first coal was raised in 1909, at which time its shafts (783 & 750 yards deep) were the deepest in South Wales. It held the European record for coal recovered in 1935.
Penallta Colliery closed in 1992. Much of the site has been since been landscaped into the Penallta Community Park, but traces of its coal tips can still be seen.
Mineral List
3 entries listed. 3 valid minerals.
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