L:200
V:40
Twll Clogfaen, Boulder Hole
NGR: SO 02254 08476
261 m.asl
Merthyr Tydfil , Northern Outcrop - East (Morlais to Abergavenny)
Brendan Marris
2015
Cambrian Cave Registry entry 2014-1
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L:200 V:40 |
Twll Clogfaen, Boulder Hole NGR: SO 02254 08476 261 m.asl Merthyr Tydfil , Northern Outcrop - East (Morlais to Abergavenny) |
map using leaflet map: | |||
| Active | Pothole | ||||
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| Description | |||||
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Brendan Marris 2015 | |||||
| Survey | |||||
| References | |||||
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Cambrian Cave Registry entry 2014-1 |
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