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Vaynor Quarry, Trefechan, Merthyr Tydfil, Wales, UK

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Latitude & Longitude (WGS84): 51° 46' 28'' North , 3° 23' 50'' West
Latitude & Longitude (decimal): 51.7745071702, -3.39737042621
UK National Grid Reference:SO036094
Other/historical region names associated with this locality:Mid Glamorgan; Breconshire; Brecknockshire

Following the reorganisation of 1996, the three Unitary Authorities of Merthyr Tydfil, Bridgend and Rhondda Cynon Taff were formed from the administrative county of Mid Glamorgan.

Mid Glamorgan was itself only formed during the 1974 and was previously part of the traditional county of Glamorgan, which dates back to the middle ages, but it also incorporated a very small part of the traditional county of Breconshire.

Mineral specimens from this location may therefore be labeled as coming from Merthyr Tydfil, Mid Glamorgan or Breckonshire depending upon the time they were collected.

Locations now within Merthyr Tydfil, but that were previously part of Glamorganshire are listed seperately within that section.

Mineral List

7 valid minerals.

The above list contains all mineral locality references listed on This does not claim to be a complete list. If you know of more minerals from this site, please register so you can add to our database. This locality information is for reference purposes only. You should never attempt to visit any sites listed in without first ensuring that you have the permission of the land and/or mineral rights holders for access and that you are aware of all safety precautions necessary.
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