Llyn y Fan Fawr outflow is to the River Tawe. Much of the land around the lake is peaty and thus wet underfoot. Llyn y Fan Fawr Llyn y Fan Fawr (Welsh: 'lake of the big peak') is a natural lake in the county of Powys, Wales. It lies at the foot of Fan Brycheiniog, the highest peak of the Black Mountain (Welsh"Y Mynydd Du") range within the Brecon Beacons National Park. Created as a result of glacial action, it is one of the largest glacial lakes in southern Wales. The lake is roughly rectangular in shape with its long axis oriented roughly north-south.
Pen-y-cae, Wrexham Wrexham via Rhos, and later via Ponciau also. When the bus industry was de-regulated in 1986 there was fierce competition between Wright's and the much larger Crosville company. Wrights', the last surviving independent local company, ceased operations in 1993 leaving Crosville as the sole service provider in the Wrexham area. Pen-y-cae, Wrexham Pen-y-cae is a village and a local government community, the lowest tier of local government, part of Wrexham County Borough in Wales The population of the community taken at the 2011 census was 3,389. It adjoins the larger village of Rhosllanerchrugog. Pen-y-cae means 'head of the field' or