Though no trace of it remains today, this ancient structure was documented by Thomas Fagan during his visit in 1846, when four standing stones still marked its presence in the landscape. The monument appeared on the first Ordnance Survey maps of 1847-8, sitting in level ground about 400 metres southwest of the River Finn.

Fagan’s sketch and notes provide our only glimpse into what this lost monument looked like. The structure ran roughly east to west and stretched about 6.4 metres in length. At its western end stood the most impressive stone; a substantial upright measuring over 2 metres high and 1.4 metres wide. Along the southern side, three more stones remained standing, though these were of varying sizes, with one reaching 1.2 metres high and 1.5 metres long, whilst the other two were considerably smaller. The arrangement suggests this may have been the inner end of an east-facing gallery, possibly part of a court tomb, with the western stone serving as a backstone.

Despite Fagan’s detailed observations, archaeologists have been unable to definitively classify this monument. His sketch indicated that the gallery narrowed towards the presumed backstone, a characteristic often found in the endchambers of court tombs throughout Ireland. However, without physical remains to examine, Labba Grania remains an intriguing mystery; another piece of Ireland’s prehistoric puzzle that has vanished into the landscape, leaving only nineteenth-century sketches and descriptions to hint at its original form and purpose.