Shielmartin Hill or ShelmartinDublin, MH Gill and Son, 1912, Weston St John Joyce, 'The Neighbourhood of Dublin', Chapter 32Dublin, The Irish Naturalist, Vol. 4, No. 7 (Jul. 1895), pp. 174-179, Praeger R Lloyd, 'Notes on the Flora of Howth' (high) is a peak on Howth Head (...) (from Wikipedia)