| Site Type: | Sinkhole | | Site Status: | local interest | | Council area: | Fermanagh & Omagh District Council | | Grid Reference: | H08004099 | | Bing maps: | 54.31726,-7.87705 | | Google maps: | 54.31726,-7.87705 | | Rocks |
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| Rock Age: | Quaternary, Carboniferous (Asbian, Holocene, Visean) | | Rock Name: | Dartry Limestone Formation, Meenymore Formation | | Rock Type: | Limestone | | Interest |
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| Other interest: | cave, sinkhole, sump |
| Summary of site: |
| # 384. The Mullyard stream sinks at the base of a rock wall as the stream bed crosses the boundary between the Meenymore Formation above on to the Dartry Limestone. A convoluted entrance gives access to a traverse above a pit, followed by a muddy crawl into standing water up to the roof, the first of a series of ducks. Exploration terminates at a sump which has been dived for 3m; the passage continues thereafter. | | Mullyard Sink is thought to resurge at Mullyard Rising, about 1km to the south in the valley. |
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