Located as it is at the base of one of the paths to the summit of Snowdon, Pitt’s Head was a halt on the original Welsh Highland Railway, also marking the highest point on that railway. The present reconstruction of the railway does not envisage reopening the halt. The rock gives its name to the Pitt’s Head Bridge, where the railway passes under the A4085, and the nearby Pitt’s Head Cutting.
In the Geology of the region, the rock gives its name to the rock of which it is formed, the Pitt’s Head Tuff. This is an Ordovician acid ash-flow tuff which outcrops on the northern flanks of Snowdonia.
The correct name for this rock cluster is Cerrig Collwyn, Pitt's Head is only a name for one of these rocks. Collwyn was said to be Lord of Eifionnydd, Ardudwy and part of Llýn
Statue of William Pitt at Pembroke College, Cambridge
Portrait of William Pitt, attributed to Thomas Gainsborough
William Pitt by Joseph Nollekens, 1808
- Cerrig Collwyn - See : Hynodion Gwlad y Bryniau - Cyfres Llafar Gwlad rhif 48 tudalen 7. By Steffan Ab Ioan
- The Lakes of Eryri Geraint Roberts Gwasg Carreg Gwalch 1995
- Leigh's guide to Wales & Monmouthshire, 1835, p. 71 Digitised
- Encyclopædia Britannica, 1911 Colwyn Bay Online Text.
However, this reference confuses irretrievably the town of Colwyn Bay on the North Wales Coast, and the River Colwyn which is close to Pitt's Head. There is no connection between the two apart from the name, but the Encyclopedia places Pitt's Head close to Colwyn Bay. It is nevertheless a source for the name of Pitt's Head.
- British Geological Survey, England and Wales Sheet 118
- Magmatic Evolution of the Ordovician Snowdon Volcanic Centre, North Wales (UK) THORPE et al. J. Petrology. 1993; 34: 711-741
- see also references in Welsh Highland Railway
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