Castell y Gwynt
hill (972m) in Conwy County Borough

Castell y Gwynt (English: Castle of the Wind) is a top of Glyder Fach in Snowdonia, north-west Wales. It has the distinction of being the only 3000 ft Welsh summit classed as only a Nuttall, hence it is not included in the Welsh 3000s. It has a prominence of 15.7 m (51.5 ft), and was only included on the Nuttall's list after re-surveying in 2007. The top is more famous as a feature than a summit.
Castell y Gwynt and the "Cantilever Stone" featured in the 1981 film Dragonslayer.
“Castell y Gwynt” enters the record as hill (972m) in Conwy County Borough. Crown Archives preserves that source wording while asking what Castell, Gwynt and hill can confirm, complicate or overturn.
Why this record matters
“Castell y Gwynt” is worth following because a concise public description often conceals a longer documentary argument. Here, Castell, Gwynt and hill provides the most credible route into that argument.
Place names and jurisdictional language are key evidence: both can reveal earlier catalogue descriptions and overlooked record series. The source revision retrieved here is dated May 22, 2026. The linked authority identifier is Q5049676. Authority coordinates are 53.104, -4.012. 1 of 1 selected statements include explicit references; 0 carry qualifiers and 0 use preferred rank. The first chronological checks are 2007 and 1981.
A single description cannot reconcile every naming convention, rebuilding phase or administrative transfer associated with a place. The lead is largely declarative, so disagreement and counter-evidence require a deliberate search beyond the opening account. Authority statements aid reconciliation but still require their own references, qualifiers and ranks to be checked.
How to read it
Treat names, boundaries and functions as historically changeable. Maps, plans, inventories and administrative records can clarify what the place meant at different dates.
- Historic place names
- Jurisdictional context
- Routes into maps and plans
Contemporary maps, plans, listed-building records, estate papers and the responsible local or national archive.
Three-step research path
- Establish the record: confirm the title “Castell y Gwynt”, its source revision and the description used here.
- Expand the search: follow Castell y Gwynt primary sources, Castell y Gwynt archive and Castell research across catalogues and specialist indexes.
- Test the account: compare the strongest cited source with the responsible institution’s current record and note any disagreement.
Questions for further research
- Which source most directly establishes the central claim about “Castell y Gwynt”?
- What physical evidence or contemporary plan supports the description?
- Which earlier names or jurisdictions may reveal additional records?
Search terms from this dossier
This entry incorporates text from “Castell y Gwynt” 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.