Tarenni Colliery

The Tarenni Colliery (Welsh: Gloddfa Tarenni) and its associated workings, are a series of coal mines and pits located between the villages of Godre'r Graig and Cilybebyll located in the valley of the River Tawe, in Neath Port Talbot county borough, South Wales.

At this time during World War II, labour was expensive, so it is likely that economics also played a large part in the decision to close.

[4] From 1937, the company started development workings to check the Big vein south, sinking the No.1 shaft to 576 yards (527 m).

The development work on No.1 shaft continued after the war, approved for an investment of £150,157 by the Ministry of Fuel and Power to access the Lower Peacock seam in a more stable area.

[3] Further investment was made by the purchase and refurbishment of a new 0-4-0WT shunting locomotive, formerly of the Great North of Scotland Railway.

[7] Working the same area as the Tirbach Slants, National Union of Mineworkers records suggest the development was active from 1962.

[8] On 13 October 1858, when the Primrose Colliery was owned by Morgan and Lewis, fumes of an engine boiler suffocated 14 men and boys, and 7 horses.

[1][10] 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.