Excavations, which have been in progress since 1962, have shown that this site was used for burial and occupation during four main phases :
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1. Neolithic (c.3000 - 2000 B.C.)
There is some evidence for occupation during this period but the main features mainly consist of a cemetery of up to twenty passage tombs. These were used for communal burial. The rite was cremation. Grave goods such as pottery, beads, bone pins and pendants, were often placed with the remains. The principal site is a huge mound, almost circular, covering an acre and a half. This is mainly made from loose stones and it has a delimiting kerb of large stones. It covers two long passages leading to burial chambers which were placed back to back. The entrance to one is from the west and it is about 34 metres (114 feet) long; the other is over 40 metres (130 feet) long and has an impressive corbelled roof to the chamber which is about 6 metres (20 feet) high. The other passage tombs average 14 metres (45 feet) in diameter and occur close to the big mound.
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2. "Beaker" Period (c. 2000- 1800 B.C)
This stage is represented by four areas of habitation which consists of pits, fireplaces and occupation debris. All produced on excavation, a large quantity of flint artifacts and shards of pottery.
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3. Iron Age - Early Christian
(c. 1st Century - 12th Century A.D.)
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4. Norman (c. late 12th - early 14th century A.D.)
At the end of the 12th Century the Normans took over the site. They constructed a rectangular stone structure on the top of the large mound. A range of Norman artifacts, the most common being glazed pottery, was found on the site.
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| Entrance |
![]() Domed Roof Eastern Chamber "The Megalith Builders Euan Mackie" |
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| Stone Basin Picture reproduced from "Great Archaeologists" Edward Bacon |
Text reproduced without permission from Brochure "Knowth, Co. Meath. (The Office of Public Works)