¹⁵Westropp, T.J. "Types of the Ring-Forts and Similar Structures Remaining in Eastern Clare (The Newmarket Group)." Proceedings of the Royal Irish Academy. Section C: Archaeology, Celtic Studies, History, Linguistics, Literature 27 (1908-1909): 219.
A radiocarbon date was derived from directly under the base of the rampart. This provided a calibrated date range of between 1255 BCE-917 BCE, thus confirming the hillfort's construction in the Late Bronze Age. (Grogan, Eoin, and Tom Condit. "New Hillfort Date Gives Clue to Late Bronze Age." Archaeology Ireland 8.2 (1994): 7.)