Man-made underground passage in Tullydonnell Upper

Marked on the 1st and 2nd editions of the OS 6-inch maps. No trace of this 'Cave' could be found. It was situated in an area where the bedrock comes close to the surface on the edge of a plateau overlooking a vast area to the S and W. The above description was derived from the 'Archaeological Survey of County Donegal. A description of the field antiquities of the County from the Mesolithic Period to the 17th century.' Compiled by: Brian Lacey with Eamon Cody, Claire Cotter, Judy Cuppage, Noel Dunne, Vincent Hurley, Celie O'Rahilly, Paul Walsh and Seán Ó Nualláin (Lifford: Donegal County Council, 1983). In certain instances the entries have been revised and updated. Date of upload: 22 September 2008