Loughscur (also locally known as Dermot and Grania’s Bed) is likely a collapsed megalithic structure, possibly a portal tomb or the remains of a dismantled stone cist. It is located near Keshcarrigan, less than 300 meters south of Loughscur Lake in County Leitrim, Ireland.
The classification of the site at Loughscur remains a subject of debate. While it is mostly interpreted as a portal tomb or the remnants of a dismantled stone cist, it could also be a damaged wedge tomb.
The megalithic structure stands at a height of 1.45 meters, is 3.70 meters wide, and measures a total length of 10.5 meters (indicating features of a wedge tomb). The entrance is situated on the southern side. Constructed from limestone, the fragmented remains of an enormous capstone, approximately 4.5 × 3.0 meters in size (supporting the portal tomb theory), and two orthostats each about 1.2 meters in height, protrude from the ground. The capstone is broken into four pieces. About seven meters north of the structure, there are two larger stones, with one standing upright at approximately one meter in height.
