2St. Joseph, J.K.S., and E.R. Norman. The Early Development of Irish Society, the Evidence of Aerial Photography. London: Cambridge UP, 1969. 37.
Archaeologist Sam Moore noted in 2008: "Scant evidence of artifacts shows activity throughout the Bronze Age with Iron Age activity being centred around the Caves of Keshcorran. It is entirely possible, but difficult to prove, that the passage tombs and access to the monuments and the landscape around them became taboo or restricted." (Moore, Sam. "Myths and Folklore as Aids in Interpreting the Prehistoric Landscape at the Carrowkeel Passage Tomb Complex, Co. Sligo, Ireland." Folk Beliefs and Practice in Medieval Lives. Ed. Ann-Britt Falk and Donata M. Kyritz. Oxford: Archaeopress, 2008.)