mega-what / prehistoric horizon calendars / Ireland, Co. Clare, Ballyvaghan

Poulnabrone Portal Tomb: Luni-solar rises

East centred view with luni-solar trajectories c.3800BCE from Poulnabrone Portal Tomb, Cork, Ireland. Winter cross-quarters are at a slight break, summer cross-quarters are at another. The equinox coincides with a farmyard so that was probably a break / step as well.
Home Site Lists Glossary Survey Data

Most archaeological monuments are on private property and where not otherwise indicated those wishing to visit a site should seek permission from the landowner.

© Michael Wilson.