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Nant Gwynant

valley in Beddgelert, Gwynedd, Wales, UK

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Record originEnglish Wikipedia
Text licenseCC BY-SA 4.0
Source revisionNov 15, 2025
Entity authorityQ13130354 ↗
Source-derived summary

Nant Gwynant (also spelt Nantgwynant) is a valley in northern Wales. The A498 road descends 600 feet (180 m) into the valley in about two miles (3 km) from Pen-y-Gwryd; it follows the Nant Cynnyd, the Afon Glaslyn and alongside Llyn Gwynant, then beside the Nant Gwynant river to Llyn Dinas and passing below Dinas Emrys to Beddgelert. The road continues through the Aberglaslyn Pass to Porthmadog.

History and geography

Early references

The earliest contemporary reference to a route down the valley comes from John Leland, antiquarian to King Henry VIII, who travelled to Wales in 1538. In describing Nant Gwynant, he wrote: "The trees were so thick that a man on a white horse could not be seen from Llyn y Dinas to Pen y Gwryd." In 1802 Williams Williams described it as “a road, or rather a mere right of passage”. He continued: "Through this charming valley, like all other mountainous unimproved roads, the road is very bad, circuitous, and winding, and absolutely impassable when the floods are violent after a fall of rain ..."

Soon afterwards it was improved, and in 1808 George Nicholson wrote: "A new turnpike-road is completed to Beddgellart. This drive exhibits a wonderful variety of sublime scenery. The new road is excellent, and conveys the traveller amid Snowdonia along the banks of several beautiful lakes."

Upper section

The upper section of Nant Gwynant, from the site of the Roman fort and marching camp situated at the junction with the modern A4086 Caernarfon to Capel Curig road, follows the valley of Nant Cynnyd to a viewpoint (in about a mile) overlooking the Cwm Dyli hydro-electric power station, which was built in 1899/1900 by the North Wales Power and Traction Company to supply electricity to the Porthmadog, Beddgelert and South Snowdon Railway that failed before it was completed. The power station however still uses the waters of Llyn Llydaw to generate electricity for the National Grid (UK).

Hafod Lwyfog

A mile further and the road passes Hafod Lwyfog, the summer homestead built in the 1540s, the birthplace of Sir John Williams, goldsmith to King James I, who in 1610 presented the Church of St Mary in Beddgelert with a fine chalice.

Editorial summary

Begin with the source’s own compact description: “Nant Gwynant” is valley in Beddgelert, Gwynedd, Wales, UK. The dossier treats that line as a proposition to test through Nant, Gwynant and valley, not as a finished interpretation.

Editorial reviewA concise reference frame for defining the subject, testing terminology and identifying the institution closest to the evidence. The current lead gives the account dated anchors—1538, 1802, 1808, 1899—that can be checked directly. The selected authority fields contribute no independent date. For this dossier, Nant, Gwynant and valley is the immediate research focus.
Editorial analysis

Why this record matters

The phrase “valley in Beddgelert, Gwynedd, Wales, UK” supplies a clear boundary for inquiry. It also exposes the unanswered questions: who defined that boundary, when it became stable and which sources sit outside it.

Evidence profile

Named sources, stable identifiers and responsible institutions provide the strongest route from overview to verifiable evidence. The source revision retrieved here is dated Nov 15, 2025. The linked authority identifier is Q13130354. Authority coordinates are 53.037, -4.047. 1 of 1 selected statements include explicit references; 0 carry qualifiers and 0 use preferred rank. The first chronological checks are 1538, 1802, 1808 and 1899.

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Source & attribution

This entry incorporates text from “Nant Gwynant” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.