Site Type: | Cave, Pothole, Sinkhole | Site Status: | ASSI | Council area: | Fermanagh & Omagh District Council | Grid Reference: | H156305 | Bing maps: | 54.22365,-7.76081 | Google maps: | 54.22365,-7.76081 | Rocks |
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Rock Age: | Quaternary (Holocene) | Rock Type: | Limestone | Interest |
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Other interest: | fault, rift, pothole, sinkhole |
Summary of site: |
The pots are all separate descents along the length of a single rift, possibly a minor fault, in the Dartry Limestone Formation. The top of the rift is in the Cloghany Limestone Member of the formation. | Pigeon Pot No. 2 is the deepest and most extensive, and is at the southern end of the rift. A stream enters a narrow cleft before cascading down the12m of the first pitch to the floor of a stream passage trending north east. This leads on to a second shaft, around 25m deep, that ends in a rift chamber with the stream pouring from the roof and draining through the floor. There is a 40m crawl at this level. About half way down the second pitch a traverse along a short ledge enters a small passage, leading to the third pitch of 21m that ends in a fissure chamber almost directly below the first shaft. This is completely blocked. | On the far side of the top of the third pitch (originally entered by swimming across the void in flood conditions!), a further 60m of rift passage reaches two chambers. A fourth pitch from the floor of this rift is 18m deep but again is blocked by boulders and peat. | Pigeon Pot No. 3 descends a steep grassy slope to a 24m pitch into the north-south trending rift that pinches out to the south. To the north there is a good chamber rising from the foot of the pitch. | Pigeon Pot No. 1 is substantially filled by fallen rock, forming a ridge of scree. An 8m descent reaches the top of the ridge with scree descending under an overhang for a further 25m. |
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