Trefignath, Neolithic burial chamber in Holyhead, Wales.
The burial chamber comprises three megalithic stone structures with upright stones flanking a central chamber, supporting two large capstones at different levels.
Archaeological excavations between 1977 and 1979 revealed that the site was constructed in three phases, starting from approximately 3750 BCE until 2250 BCE.
The alignment of small standing stones extending from the burial chamber corresponds with the winter solstice sunrise, indicating ancient astronomical knowledge.
The burial chamber stands beside the A55 road with a designated parking area, requiring a brief walk across a field to reach the site.
Pollen analysis from the adjacent Trefignath peat bog documents vegetation changes since the Ice Age, from sub-arctic shrubs to deciduous forests.
Location: Holyhead
GPS coordinates: 53.29323,-4.61431
Latest update: March 17, 2025 21:58
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