Newgrange, which is located at 53°41′39.4″N, 6°28′36.6″W, is one of the passage tombs of the Brú na Bóinne complex in County Meath, and the most famous of all Irish prehistoric sites.
Originally built between c.3300-2900BC according to Carbon 14 dates (Grogan 1991), it is more than 500 years older than the Great Pyramid of Giza in Egypt, and predates Stonehenge trilithons by about 1,000 years (although the earliest stages of Stonehenge are roughly contemporary with Newgrange). It lay lost for over 4,000 years due to mound slippage, until the late 17th century, when men looking for building stone uncovered it, and described it as a cave.
Newgrange was excavated and much restored between 1962 and 1975, under the supervision of Prof Michael J O'Kelly, Dept. of Archaeology, University College, Cork (O'Kelly 1986). It consists of a vast man-made stone and turf mound retained within a circle of 97 large kerbstones topped by a high inward-leaning wall of white quartz and granite. Most of the stones were sourced locally (within a radius of 20km or so) but the quartz and granite stones of the facade must have been sourced further afield, most probably in Wicklow and Dundalk bay respectively.
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