Llyn Cwm Llwch both Pen y Fan and Corn Du and indeed from the spur of Pen Milan to its west. Llyn Cwm Llwch Llyn Cwm Llwch () is a small lake or pool in the Brecon Beacons National Park in Powys, Wales. It is between 1 and 2 acres: much smaller than the two glacial lakes in the west of the Black Mountain (range): Llyn y Fan Fawr and Llyn y Fan Fach. It is of glacial origin, occupying a rock hollow beneath the peaks of Pen y Fan and Corn Du in the central Brecon Beacons. It is drained by the
St Martin's Church, Pen-y-clawdd Grade II* listed building, its listing recording the "fine barrel roofs" dating from the 15th century. St Martin's Church, Pen-y-clawdd The Church of St Martin, Pen-y-clawdd, Monmouthshire, Wales is a parish church with Norman origins which was rebuilt in the 15th century. It is located on the site of an early Welsh defensive earthwork. The church was restored in 1884-85. It remains an active church in the parish of Llangovan with Pen-y-clawdd. It is a Grade II* listed building. The church dates from the Norman period but is located on the site of an earlier earthworks. The present building was