Tarenni Colliery 1858, when the Primrose Colliery was owned by Morgan and Lewis, fumes of an engine boiler suffocated 14 men and boys, and 7 horses. According to HM Inspectorate of Mines and Quarries data, outside the Gwendraeth valley, Tarenni Colliery had the highest set of recorded incidents for coal damp and methane gas explosions. In total during its production lifetime, there were six outbursts in which three men lost their lives: one on 12 December 1914; two on 17 February 1941. On 1 November 1909, water from the abandoned Ynysgeinon pit caused the death of five miners at Tarenni No.2. On
Holditch Colliery disaster Holditch Colliery disaster The Holditch Colliery disaster was a coal mining accident on 2 July 1937, in Chesterton, Staffordshire, England, in which 30 men died and eight were injured. It was caused due to a fire and subsequent explosions, and was exacerbated by a decision from management to risk the lives of mine workers to try to save the coal seam. Archaeologists believe that the area itself was mined as long ago as Roman times. Holditch Colliery, also known as Brymbo Colliery, opened in 1912, and was one of a number of coal mines in Staffordshire. It was located around