Sunk in 1874 to the 333 yards deep Barnsley seam and then deepened to the Swallow wood seam at 404 yards in 1934. Other seams worked include the Wathwood, and the High hazel. it worked the Barnsley Seam until 1965 and the High Hazels seam until 1966. In 1947 a scheme was developed to increase the output of the Wathwood seam (1963-1982) and the Swallow Wood seam (1900-1947, 1972-1990). Treeton Colliery ceased production on Wednesday 5th December 1990.
Sunk in 1893 by the Staveley company as Warsop Main Colliery. The colliery came into production in 1898. In 1935 it was one of the most proficient mines in the country, employing 2,500 men and boys and producing a weekly output of 21,000 tons of saleable coal. In 1953 a proposal was drawn up to fully re-organise the mine both surface and underground including tower mounted winders. Four other seams were exploited during the life of the mine, namely the High Hazel, the Main Bright, the Clowne and the Deep Soft but non of these surpassed the Top Hard Seam. The Mine closed in 1989.
Pit Terminology - Glossary