Beaton, A.J. 1885. Notes on Ormond or Avoch Castle, in the Black Isle, Ross-shire, with a Plan and Section; and Notice with Drawings of Bronze Celts found in its Vicinity. Proceedings of the Society of Antiquaries of Scotland. 19, (Nov. 1885), 400–405. DOI:https://doi.org/10.9750/PSAS.019.400.405.