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
Pen-y-Fal Hospital Pen-y-Fal Hospital Pen-y-Fal Hospital was a psychiatric hospital in Abergavenny, Monmouthshire, opened in 1851 and closed in 1996. It held up to 1,170 patients at its peak. The facility went under a variety of names: Pen-y-Fal was designed initially to house 250 patients. Its architect, Thomas Fulljames of Gloucester, assisted by Frederick Sandham Waller, chose the Tudor Gothic style using local old red sandstone with Bath stone dressings to animate its charming gathering of gables and chimneys. The property was set in grounds of 75 acres reflecting the medical thinking that outdoor space was an important aspect of treatment. There