Mynydd Cilfach-yr-encil
Mynydd Cilfach-yr-encil attains a height of 445m at OS grid reference SO 079033 making it the high point of the broad ridge of high ground between Taff Vale (Welsh: Cwm Taf) and Cwm Bargod in the Valleys region of South Wales. It lies within the County Borough of Merthyr Tydfil.
The ridge is elsewhere known as Cefn Merthyr; the flat-topped Mynydd y Capel (OS grid ref SO 083008) is a significant subsidiary summit which reaches a height of 375m some 2.5 km to the south of the high point. The ridge falls away to the south to the confluence of the Bargod Taf with the River Taff at Treharris. To the north the ridge broadens out into Merthyr Common, an area heavily altered by opencast coalmining.