The History and Antiquities of Tallaght in the County of Dublin is in Victorian Books.
The History and Antiquities of Tallaght in the County of Dublin. By William Domville Handcock, М.А. Second Edition Revised And Enlarged. Dublin: Hodges, Figgis, & Co., Ltd., 104 Grafton Street. 1899.
A great cairn [Seefin Passage Tomb [Map]] crowns its highest point, which is about 100 yards in circumference. There was a deep fosse all round it; then a circle of rocks placed edgeways, and inside smaller stones, piled up about twenty feet in height. In the centre is an opening, leading into a sepulchral chamber, about twelve feet in length, and roofed with large flat stones, each projecting further than the other. The rocks of which the chamber is composed are of great size, and are rudely fitted together. The roof of the chamber has partly fallen in.