Bryngwiog Lead Mine Inundation, 1862

Date22 February 1862
MineBryngwiog Lead Mine
RegionFlintshire
TypeFlooding / Inundation
Fatalities16 (Sixteen men drowned.)
Context During active mining

On Saturday 22 February 1862, water from old workings broke into the Bryngwiog lead mine on Halkyn Mountain in Flintshire and sixteen men were drowned. The dead came from villages scattered across the mountain — Moel-y-Crio, Lixwm, Rhewl, Rhesycae, Foel, Llaneurgain and Cilcen.

Cause

Water from old workings flooding into the mine.

What happened

Halkyn Mountain had been mined for lead for centuries, and centuries of abandoned workings lay in the limestone, many of them standing full of water. On Saturday 22 February 1862 the Bryngwiog workings let that water in, and sixteen men were drowned. The roll of the dead is a map of the orefield: Edward Jones from Moel-y-Crio, Bennet Roberts from Lixwm, William Pierce from Rhewl, another Edward Jones from Rhesycae, John Jones from Foel, Richard Blackwell from Llaneurgain, William Hooson from Cilcen. They came from every village on the mountain.

Recorded claims

Individual factual claims, each attached to the source(s) that support it below. Where sources disagree, both are kept.

Related terminology

Mining terms this disaster is structurally linked to, with the nature of the relationship.

Sources

  1. (secondary) Bryngwiog Lead Mine (death roll) — welshcoalmines.co.uk
  2. (secondary) Rhosesmor — Wikipedia

Record created: 3 September 2026 · Last researched: 3 September 2026