The capstone is estimated to weigh approximately 16 tons.
Excavations in 1936-1937 revealed the burial chamber was originally enclosed within a long, crescent-shaped mound.
The portal stones are angled to frame the entrance, a common design feature in Welsh megalithic tombs.
Despite being a burial site, very little human bone survived the acidic soil conditions during archaeological excavations.
The site was abandoned and deliberately blocked with dry stone walling before the mound was eventually eroded or removed.
Local folklore once claimed the structure was the home of fairies or spirits known as the 'Gwragedd Annwn'.
Pentre Ifan is the largest and best-preserved Neolithic dolmen in Wales, dating back to approximately 3500 BC. The structure consists of a massive 16-ton capstone balanced precariously on three upright stones. It served as a communal burial chamber and originally featured a mound of earth covering the stone structure. Excavations revealed it was likely used for multiple interments over several generations. The site is maintained by Cadw and is positioned on a hillside overlooking the Nevern Valley. The burial chamber is constructed from local Preseli igneous rock. It remains a significant example of portal dolmen architecture in Western Europe. The site is exposed to the elements due to its elevated location.
Capture the profile of the capstone from the lower path to emphasize its balanced, floating appearance against the valley backdrop.
Wear sturdy, waterproof hiking boots as the grass path leading to the monument can be muddy.
Bring a windproof jacket even in summer, as the elevated, exposed position of the monument often results in strong breezes.
Plan to visit on a weekday to avoid crowds, as the nearby small parking area fills up quickly on weekends.
Do not rely on finding public restrooms or cafes at the site, as there are no facilities on-site.
Do not climb or lean on the stones to ensure preservation of the fragile megalithic structure.