The Cwm Pennant Fault is a SSW-NNE trending normal fault system in North Wales. It forms part of the structures that bound the Snowdon graben. The main...

types are normal faults, reverse faults, thrusts or thrust faults and strike-slip faults. Many faults may have acted as both normal faults at one time and...

of Snowdonia, the faulting and folding of this rock succession took place during the Caledonian Orogeny. The crater-like shape of Cwm Cau has given rise...

Member and Brithdir Member. Pennant sandstone is an excellent construction rock and road stone.[citation needed] Faults have an orientation of North...

The thickly afforested northern slopes of the hill drop down steeply into Cwm y Glyn. The hill lies on the southeastern edge of the South Wales Coalfield...

Garn Bica, southwest of Trap. Pennant Sandstone was quarried at Dan-y-quarry south of Pontyates, at Craig-capel and nearby Cwm Capel quarries, at Burry Port...

from Pennant Sandstone overlying a thick suite of South Wales Coal Measures rocks which have been heavily mined in the past. Many NW-SE aligned faults cut...

unsuitable. A member of the whitefish family, it is found only in the lake. Cwm Hirnant, a valley running south from Bala, gives its name to the Hirnantian...

generally obscured by superficial deposits. A fault-bounded block of sandstones, mudstones and siltstones of the Pennant Sandstone Formation occurs around Nolton...

the geologic time scale. Similarly Trefawr Track, a forestry road north of Cwm-coed-aeron Farm, Llandovery, is the location of the GSSP marking the boundary...

production, and built cromlechs such as Pentre Ifan, Bryn Celli Ddu, and Parc Cwm long cairn between about 5,800 BP and 5,500 BP. Over the following centuries...

glacial cirque on the eastern side of Blorenge. There are no indications that Cwm Craf on its northern side held a glacier but it is perhaps periglacial in...

surrounding Chirk Castle. Wooded lowlands are vastly present, near the village of Cwm in the north, along the Dee Valley (excluding developed land in the towns...

damming during a glacial period. The upper course of the river follows a fault line but at Abergynolwyn must have been blocked by a major landslide, the...

There are also a number of cairns at Trefeurig, including Garn Wen on Fanc Cwm-isaf, Dolgau cairn on Fanc Trawsnant and cairns at Nghaer Daren. When Lewis...