Christison, David, Joseph Anderson, and Thomas Ross. “Report on the Society’s Excavations of Forts on the Poltalloch Estate, Argyll, in 1904-5”. Proceedings of the Society of Antiquaries of Scotland 39 (November 30, 1905): 259–322. Accessed April 23, 2024. https://journals.socantscot.org/index.php/psas/article/view/6942.