Megalithic structure, Umgall, Co. Donegal
In the townland of Umgall, County Donegal, there once stood a megalithic structure that captured the imagination of 19th-century antiquarians.
Megalithic structure, Umgall, Co. Donegal
Known variously as ‘Oscar’s Grave’, ‘Ossian’s Grave’, or simply ‘Grave’ on the 1848 Ordnance Survey map, this monument was already in ruins by the time it was first officially documented. The OS surveyors recorded a structure measuring roughly 12 feet long by 6 feet broad, though by then it consisted merely of scattered stones and rubble; local farmers had carried away most of the useful stones for building projects, leaving behind only fragments of what may have been an impressive prehistoric monument.
The true nature of this lost site remains tantalisingly unclear. In 1949, archaeologist Colhoun classified it as a multi-chambered cairn, suggesting it may have been a complex burial monument dating back thousands of years. However, with virtually no physical evidence remaining, even by the mid-19th century, it’s impossible to verify what type of megalithic structure originally stood here. Today, visitors to the site might spot two large, partially buried stones that could be remnants of the original monument, though even these are uncertain survivors of what was once there.
The various names attached to the site; Oscar’s Grave and Ossian’s Grave; reflect the Victorian tendency to connect ancient monuments with figures from Irish mythology, particularly the Fenian Cycle. While these romantic associations likely have no historical basis, they speak to the enduring fascination these mysterious structures held for generations of locals and scholars alike. The monument’s destruction, piece by piece for practical building materials, represents a common fate for many of Ireland’s prehistoric sites, particularly in areas where stone was scarce and ancient monuments were seen as convenient quarries rather than historical treasures worth preserving.





