Newgrange Kerbstone 67

Kerbstone K67 is located on the eastern side of the mound at Newgrange in the Boyne Valley. It is one of the most heavily decorated stones on the site. The left half of the stone is covered with a neat pattern of diamond and triangle shapes carved in a repeating grid.

The right half is very different and shows two large spirals placed beside each other. The stone is important because it shows two major styles of Newgrange art side by side. One side uses straight lines and sharp angles while the other uses flowing curves.

Posterization is a digital image processing technique which results in the conversion of a continuous gradation of tone to some areas of fewer tones, often causing dramatic changes from one colour tone to another.

Newgrange | Brú na Bóinne

Newgrange is a prehistoric monument located in the Boyne Valley within Ireland's Ancient East, and is part of the Brú na Bóinne archaeological complex. Constructed around 3200 BCE, it is a large circular mound with a passageway leading to a central chamber. Newgrange is renowned for its winter solstice phenomenon, where sunlight penetrates the passage and illuminates the inner chamber, demonstrating an ancient understanding of astronomy.

Brú na Bóinne encompasses several prehistoric monuments, with Newgrange and Knowth being the most prominent. Brú na Bóinne is recognised as a UNESCO World Heritage Site, reflecting its importance in understanding the Neolithic period and the development of ancient Ireland.

Kerbstones are large stones that form a ring around the base of passage tombs in Ireland, and they are a distinctive feature of sites like Newgrange and Knowth. Many of the kerbstones, particularly at Knowth, are adorned with intricate megalithic art, featuring geometric patterns, spirals, and symbols.