MineArchiveCoed-y-Moeth Colliery
| Also known as | Coedymoeth Colliery |
|---|---|
| Location | Cwmsyfiog, near Brithdir, Rhymney valley, Caerphilly — 51.7081, -3.2250 (approximate) |
| Commodity | Coal |
| Type | Coal |
| Worked | 1893–1910 |
| Maximum depth | Unknown. |
| Operators | Powell Duffryn Steam Coal Company (1893–1910) |
Overview
A Powell Duffryn pit at Cwmsyfiog, near Brithdir in the Rhymney valley, sunk from 1 January 1893 to the Brithdir seam at a cost of £33,292. It employed 378 men in 1900 but was dogged by flooding and abandoned in 1910.
History
Sinking of Coed-y-Moeth Colliery, at Cwmsyfiog near Brithdir in the Rhymney valley, began on 1 January 1893. The Powell Duffryn Steam Coal Company sank it to the Brithdir seam at a cost of £33,292. In 1896, managed by N. Phillips, it employed 241 men underground and 44 on the surface, and 378 men in 1900.
On Friday 25 May 1900 a boy of twelve, David James, a collier's assistant (named David James Howard of Bargoed in other records), was killed by a fall of roof. The pit was dogged by flooding throughout its short life. Employment fell to 117 in 1907 and 88 in 1908, under the manager Isaac Martin, and the colliery was abandoned in 1910. Its Brithdir seam workings are recorded on the same abandonment plans as the neighbouring Cefn Brithdir pits.
Geology
The Brithdir seam.
Workings
A pit sunk to the Brithdir seam, worked beside the Cefn Brithdir pits; flooding troubled it throughout.
Closure
Abandoned in 1910 after continual flooding.
What remains
Unknown.
Redevelopment
Unknown.
Related mines
- Cefn Brithdir Colliery — Neighbouring pits in the Brithdir seam, recorded together on the same abandonment plans.
Nearby mines
- Cefn Brithdir Colliery — 0.1 miles (0.2 km) SW
- Elliot Colliery — 0.7 miles (1.2 km) NW
- Markham Colliery, Sirhowy Valley — 0.8 miles (1.3 km) E
- Abernant Colliery (Argoed) — 1.0 miles (1.6 km) E
- New Tredegar Colliery — 1.0 miles (1.6 km) NW
Straight-line distance, within 9 miles (15 km). Show on the map.
Recorded claims
Individual factual claims, each attached to the source(s) that support it below. Where sources disagree, both are kept.
- The Powell Duffryn Steam Coal Company began sinking on 1 January 1893, at a cost of £33,292. 1
- It employed 285 men in 1896 and 378 in 1900. 1
- A twelve-year-old boy employed at the Coedymoeth pit was killed by a fall of roof in May 1900. 1,2
- Two deaths were recorded at Coed-y-Moeth in 1900, a collier and a collier's boy. 3
- Dogged by flooding, it was abandoned in 1910. 1
- Cefn Brithdir and Coed-y-Moeth are recorded together on plans of the Brithdir seam. 4
Photographs & further reading
The sinking, manpower and abandonment, with the neighbouring White Rose and Cefn Brithdir workings.
View sourceSources
- (secondary) Welsh Coal Mines: Coed-y-Moeth colliery, Cwmsyfiog — Welsh Coal Mines
- (primary) 'Local news paragraphs', Western Mail, 28 May 1900 — Welsh Newspapers Online (National Library of Wales)
- (secondary) NMRS coal mining accidents and deaths database — Northern Mine Research Society
- (primary) BGS / Mining Remediation Authority mine plan: CEFN BRITHDIR & COEDYMOETH (Brithdir) — British Geological Survey
Record created: 10 October 2026 · Last researched: 10 October 2026