Gwaith Y Mwynau Mine and Trial Mines

Gwaith-Y-Mwynau Mine

Gwaith-Y-Mwynau Mine is near Maen Serth Standing Stone, Elan Valley. The Mine is said to go back to 1640 and was owned by Sir Hugh Middleton, who in 1609 began the construction of a 61 km canal to gravity feed fresh water into the city of London, the New River, which he completed in 1613. The mine provided silver to finance the Royalist war effort of King Charles I with the ore being sent to the mint at Aberystwyth. There are two other mine Adits recently found a short distance from the Gwaith-y-Mwynau Mine. Lots of mine trialing mines around the area to. On the North side of the hill there are other mines above Cwm Bach Farm, Cwm Bach Mine
Map Ref SN9440 6974










Gwaith-Y-Mwynau Mine Survey

Gwaith-Y-Mwynau Mine Survey by David M D James, April 2018


Esgair Dderw Mine Adits

Two mine adits not far from Gwaith Y Mwynau Mine. Very dangerous position, I don't recommend visitng these adits. bats use these mines to hibernate during the winter months so please keep away during the winter.
Map Ref SN942 697




Esgair Dderw Mine Adits Survey

Esgair Dderw Mine Adits Survey by David M D James, 2018


Esgair Dderw Upper Adit

The Upper Adit only goes in a very short distane




Esgair Dderw Lower Adit

The Upper Adit only goes in a short distane








Esgair Dderw Trail Mine 1

Esgair Dderw trail mine 1, probably The Exploration Stage of mining activities on Esgair Dderw which may be very old.
Map Ref SN93900 69730


Esgair Dderw Trail Mine 2

Esgair Dderw trail mine 2, probably The Exploration Stage of mining activities on Esgair Dderw which may be very old.
Map Ref SN93920 69770


Esgair Dderw Trail Mine 3

Esgair Dderw trail mine 3, probably The Exploration Stage of mining activities on Esgair Dderw which may be very old.
Map Ref SN94210 69740


Esgair Dderw Trail Mine 4

Esgair Dderw trail mine 4, probably, hollow about 5m in diameter and 1m deep. The Exploration Stage of mining activities on Esgair Dderw which may be very old.
Map Ref SN93950 69930


Esgair Dderw Trail Mine 5

Esgair Dderw trial mine 5, 5m x 8m in diameter and 1.5m deep, probably the exploration stage of mining activities on Esgair Dderw which may be very old.
Map Ref SN93966 69988


Esgair Dderw Trail Mine 6

Esgair Dderw trial mine 6, 18m in length x 1.5m wide, probably the exploration stage of mining activities on Esgair Dderw which may be very old.
Map Ref SN93970 70040


Esgair Dderw Mine Shaft

Esgair Dderw Mine Shaft just off the coach road up the golf links, 8m in diameter and 1.5m deep.
Map Ref SN9459 6985


Possible Mining Trial

Possible mining trial just off the Old Aberystwyth Mountain Road on Esgair Dderw.
Map Ref SN93873 69627




Possible Mining Trial

Another fairly large mining trial just off the Old Aberystwyth Mountain Road.
Map Ref SN93888 69663



Possible Mining Trial

Another possible mining trial 6mx5m roughly. There are a number of smaller hollows which may be mining trials in the area which I didn't record.
Map Ref SN93886 69642


Possible Mining Trial

A long possible mining trial very close to the Old Aberystwyth Mountain Road. This one is around 2m at one end and runs for about 11m long.
Map Ref SN93863 69619


Possible Mining Trial

Possible mining trial near Maen Serth Standing Stone, 10mx1m.
Map Ref SN94334 69899


Possible Mining Trial

Possible mining trial just above Gwaith-Y-Mwynau Mine.
Map Ref SN94390 69777


Possible Mining Trial

Possible mining trial pit a short distance from Gwaith-Y-Mwynau Mine, 4m in diameter.
Map Ref SN94452 69786


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