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Porth yr Ogof cave
Near Ystradfellte in the Brecon Beacons National Park, Wales - the biggest cave entrance in Wales through which the river Mellte flows.
- Author
- John Kendrick
- Created on
- Saturday 30 April 1977
- Created
- Posted on
- Sunday 18 August 2013
- Tags
- caves, Ystradfellte
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- 1864
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