Gedling Colliery, in the Nottinghamshire coalfield, closed in 1991 after nearly a hundred years of activity. At its peak, the pit produced more than a million tonnes of coal a year and thousands of local men worked there. It was known locally as 'The Pit of Nations’ because of its diverse workforce from the 1950s to the 1980s.

In this programme, Rose Ferraby visits the site of the old pit tip, which has been converted into a country park. She meets a local historian and a former mine worker as well as members of the Friends of Gedling Country Park.

Down in the valley Rose visits the slurry lagoon, where waste water from washing the coal was piped out. The former industrial waste site has been converted into a thriving nature reserve with the help of the Gedling Conservation Trust.

Presented by Rose Ferraby