| Blaen Onneu Quarry Pot (Cave)
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| Location | SO 15890 16210. Northern Outcrop - Central (Morlais to Abergavenny), Powys | Updated |
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| Elevation (m) | 498 | Length (m) |
200 | ||
| OS Map No. 1:50000 |
161 | 1:25000 |
OL12 | 1:10000 |
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| Access | Also known as Pwll Blaen Onneu. This pothole is in a disused quarry, 460m North West of the summit of the Beaufort to Llangynidr road. A gate has been installed in the passage leading t o the Southern extensions. Access from A.Dickenson on 10452 770310. |
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| Description | The entrance is a small hole in the quarry floor opening out into the passage below. The pitch is about 3.6 m deep and can be descended with the help of a ladder or rope. The passage entered is a high rift and can be followed to the north and to the south. To the north, the passage soon reaches a narrow pitch. Belay ladder or rope to an iron bar wedged between the walls. At the bottom of the pitch a rift passage leads to a shattered area and then to a smaller passage with several squeezes leading to a chamber. A small passage to the right leads to a narrow meander which lowers to a crawl and ends at a choke. On the other side of the chamber is a large boulder choke, this can be passed on the left to a space above the choke and a 2.2 m pitch into another chamber. On the far side a crawl leads to another chamber. To the south, from below the entrance pitch, the high rift descends over boulders before the roof lowers at a shattered area. An excavated crawl beyond the gate then leads to the Twin Peaks, a 9 m pitch. Two small passages lead northwest and southeast from the bottom of the pitch but both end within a short distance. The way on is via an excavated hole in a small chamber to the north of Twin peaks. This leads to a tight crawl and a 5 m pitch into a chamber. From here a passage runs southeast and a small stream is met before the passage closes down. |
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| Bibliography | BNS Journal 1, 2-3, 1959. Discovery of extension Stratford, T. Caves of South Wales. 1995 Schuurmans, T. A Caver's View of the Clydach River, 1986. Cwmbran Caving Club |
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| Survey | BNS Journal 1, 2-3, 1959 Llanelly Diggers 1992 |
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| Found / Dug By | SWCC 1948. Extended by Llanelly Diggers 1990 | ||||
| Copyright © Cambrian Caving Council 2008 |
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