Monmouthshire and Brecon Canal
network of canals in South Wales

The Monmouthshire and Brecon Canal (Welsh: Camlas Sir Fynwy a Brycheiniog) is a small network of canals in South Wales. For most of its currently (2018) navigable 35-mile (56 km) length it runs through the Brecon Beacons National Park, and its present rural character and tranquillity belies its original purpose as an industrial corridor for coal and iron, which were brought to the canal by a network of tramways and/or railroads, many of which were built and owned by the canal company.
The "Mon and Brec" was originally two independent canals – the Monmouthshire Canal from Newport to Pontymoile Basin (including the Crumlin Arm) and the Brecknock and Abergavenny Canal running from Pontymoile to Brecon. Both canals were abandoned in 1962, but the Brecknock and Abergavenny route and a small section of the Monmouthshire route have been reopened since 1970. Much of the rest of the original Monmouthshire Canal is the subject of a restoration plan, which includes the construction of a new marina at the Newport end of the canal.
The Monmouthshire Canal
This canal was authorised by an act of Parliament, the Monmouthshire Canal Navigation Act 1792 (32 Geo. 3. c. 102), passed on 11 June 1792, which created the Company of Proprietors of the Monmouthshire Canal Navigation and empowered it to raise £120,000 by the issuing of shares, and a further £60,000 if required. The act stated that the canal would run from Pontnewynydd to the River Usk near Newport, and would include a branch from Crindau to Crumlin Bridge.
“Monmouthshire and Brecon Canal” enters the record as network of canals in South Wales. Crown Archives preserves that source wording while asking what Monmouthshire, Brecon and Canal can confirm, complicate or overturn.
Why this record matters
“Monmouthshire and Brecon Canal” is worth following because a concise public description often conceals a longer documentary argument. Here, Monmouthshire, Brecon and Canal provides the most credible route into that argument.
Vocabulary and entity names are the principal evidence signals here, because they determine the precision of every later search. The source revision retrieved here is dated Jun 30, 2026. The linked authority identifier is Q6901171. VIAF identifies the subject as 315128624. Authority coordinates are 51.824, -3.099. 1 of 2 selected statements include explicit references; 0 carry qualifiers and 0 use preferred rank. The first chronological checks are 2018, 1962, 1970 and 1792.
The absence of detail may reflect summary conventions rather than a lack of surviving documentation. 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
Use the entry as an orientation point, then follow its citations and revision history. Names, dates and institutional relationships should be checked against the original record.
- Subject orientation
- Search vocabulary
- Locating named sources
The closest primary source, responsible institution and strongest cited specialist reference.
Three-step research path
- Establish the record: confirm the title “Monmouthshire and Brecon Canal”, its source revision and the description used here.
- Expand the search: follow Monmouthshire and Brecon Canal primary sources, Monmouthshire and Brecon Canal archive and Monmouthshire 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 “Monmouthshire and Brecon Canal”?
- Which institution is responsible for the underlying evidence?
- What terminology or title could unlock a more precise catalogue search?
Search terms from this dossier
This entry incorporates text from “Monmouthshire and Brecon Canal” 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.