CACrown ArchivesThe cinema collection
Menu
Research dossier · General Reference

Ferndale Colliery

coal mine in Ferndale, Rhondda Cynon Taf, Wales, UK

Cross-disciplinary reference desk with index cards, atlas, dictionary and catalogue
General referenceInterpretive dossier study · Crown Archives visual atlas
Record originEnglish Wikipedia
Text licenseCC BY-SA 4.0
Source revisionAug 14, 2026
Entity authorityQ1406923
Source-derived summary

Ferndale Colliery was a major coal mining complex comprising nine interconnected coal mines that operated in the Rhondda Valley, South Wales, from 1857 to 1959. Established by coal owner David Davis, it became one of the most significant steam coal producers in the South Wales coalfield.

The colliery was notable for two major explosions in 1867 and 1869 that killed 231 miners, and for containing the deepest pit in the Rhondda Valley at 606 yards. After nationalisation in 1947, the complex gradually closed due to economic pressures, with the final closure in 1959 ending over a century of coal extraction.

History

Early development (1857–1880s)

Ferndale Colliery originated from the ambitious vision of David Davis, a prominent Welsh coal owner who had already established successful operations in the neighbouring Aberdare Valley. In 1857, Davis leased the mineral rights to 500 acres of land at Blaenllechau, then a largely agricultural area in the previously undeveloped Rhondda Fach valley.

The initial development proved extremely challenging. Davis's first attempts to access the profitable No. 3 Rhondda seam failed completely, nearly leading him to abandon the venture. However, encouraged by his sons who had greater faith in the area's potential, Davis persevered and decided to sink deeper to reach the unproven steam coal seams that had shown promise in the Cynon Valley.

Editorial summary

The public source identifies “Ferndale Colliery” as coal mine in Ferndale, Rhondda Cynon Taf, Wales, UK. This brief keeps that definition visible, then builds a research path around Ferndale, Colliery and coal.

Editorial reviewA dependable orientation record for establishing vocabulary, names and a first evidence trail. The current lead gives the account dated anchors—1857, 1959, 1867, 1869—that can be checked directly. The selected authority fields contribute no independent date. Its value is orientation rather than verdict, with Ferndale, Colliery and coal providing the first useful test.
Editorial analysis

Why this record matters

A short description can identify a subject without explaining its stakes. For “Ferndale Colliery”, the useful work is to connect “coal mine in Ferndale, Rhondda Cynon Taf, Wales, UK” to the records capable of establishing context and consequence.

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 Aug 14, 2026. The linked authority identifier is Q1406923. Authority coordinates are 51.662, -3.444. 1 of 1 selected statements include explicit references; 0 carry qualifiers and 0 use preferred rank. The first chronological checks are 1857, 1959, 1867 and 1869.

Critical limits

Overview language is designed for orientation and should not be treated as a substitute for the evidence cited beneath it. The source lead contains qualifying language; that uncertainty should survive quotation, summary and reuse. 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.

Best used for
  • Subject orientation
  • Search vocabulary
  • Locating named sources
Verify next

The closest primary source, responsible institution and strongest cited specialist reference.

Three-step research path

  1. Establish the record: confirm the title “Ferndale Colliery”, its source revision and the description used here.
  2. Expand the search: follow Ferndale Colliery primary sources, Ferndale Colliery archive and Ferndale research across catalogues and specialist indexes.
  3. Test the account: compare the strongest cited source with the responsible institution’s current record and note any disagreement.

Questions for further research

  1. Which source most directly establishes the central claim about “Ferndale Colliery”?
  2. Which cited source is closest to the event, object or claim?
  3. Which institution is responsible for the underlying evidence?
Subject index

Search terms from this dossier

Source & attribution

This entry incorporates text from Ferndale Colliery” 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.