3De Valera, Ruaidhrí, and Seán Ó Nualláin. Survey of the Megalithic Tombs of Ireland. Vol. III, Counties Galway-Roscommon-Leitrim-Longford-Westmeath-Laoighis-Offaly-Kildare-Caven. Dublin: Stationery Office, 1972. 108-109.