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Man-made underground passage
Man-made underground passage in Ballynamona
County Sligo, Ireland
Located on the NE side of the interior of Ballynamona cashel (SL015-066001-), 2m within the internal base of the bank Roughly rectangular U-shaped depression (dims. 4m N-S; Wth Top 1.4m…
They sit almost level with each other across the map.
One real place leads to another.