1. Burial cairn situated on the SW facing slopes of Moel yr Ogof above Cwm Llefrith. The grass covered cairn is circular on plan and measures about 6.5m in diameter and up to 0.4m in height. Several well defined lengths of kerb are visible.
Source: Cadw scheduling description.
F.Foster/RCAHMW 09/08/2006

2. Site is included in an upland survey conducted in 2006. See survey report Nantlle Beddgelert (South), by M.J. Roseveare, ArchaeoPhysica Ltd.
C.H. Nicholas, RCAHMW, 14th December 2006