A large irregular boulder, approx 3 x 2 x 2m. Located at the junction of 3 field boundaries (see NPRN 500511). On the boundary of Llandyrnog and Nannerch communities; another wall is ownership boundary between DCC and Glyn Arthur. Appears to be a glacial erratic used as a boundary stone.
Recorded as part of Uplands Initiative Survey. W B Horton, Hayman and Horton, 24/09/2007.