The monument sits at the southern edge of a damp pasture terrace, with the ground rising sharply to the north whilst dropping away dramatically just beyond the field wall to the south. From this elevated position, visitors are rewarded with sweeping views across the inner reaches of Donegal Bay, a vista that would have been equally impressive when the tomb was first constructed thousands of years ago.

What survives today is the rear chamber of what was once a gallery tomb, now surrounded by the scattered remains of its original cairn. The cairn material spreads across an area measuring 20 metres north to south and 16 metres east to west, with the western side still rising to about a metre in height whilst the eastern portion has been reduced to a low spread of stones. The gallery chamber itself, facing south-southeast, extends almost 4 metres in length. Its entrance is marked by a sillstone flanked by an upright jamb on the west side and what appears to be a fallen jamb on the east. The western wall continues with two sidestones, one topped by a corbel stone, whilst the back of the chamber is closed by a slightly gabled backstone that now leans precariously outward. Various displaced slabs lie scattered around the entrance, some measuring up to 1.6 metres across, silent witnesses to the monument’s gradual decay.

The site has a rather melancholy history of destruction. When antiquarian Thomas Fagan visited in 1847, he noted that the structure had already been largely demolished, with locals claiming that human bones had been discovered during attempts to destroy the monument. Perhaps more poignantly, Fagan recorded that another tomb had once stood just 27.5 metres to the north but had been completely destroyed by his time, leaving no visible trace. Today, this surviving tomb at Lackcrom stands as a testament to Ireland’s megalithic past, its weathered stones offering a tangible connection to the people who built these monuments as places of ritual and burial over 4,000 years ago.