The Bolsover Colliery Company sank its third pit at Mansfield, Nottinghamshire. Sinking began in February 1904, and coal was reached in May 1905. The seam of workable coal known as the Top Hard Seam was 5′ 4″ thick and was at a depth of 544 yards from ground level. Although the company who owned this mine officially named it Mansfield Colliery, it soon became more known as Crown Farm Colliery or ‘Crownie’ to the miners. To help in accommodating the miners who would work there the birth of Forest Town was built, providing not only houses but also pubs, clubs, shops, school and other religious and social establishments.