Open-cast mining is demonstrated at the site at Carrington's Coppice, Derbyshire.

First, the topsoil is removed and stored for replacement after the work is complete. Shale, clay and rocks (the 'overburden') are then removed in two seams, using different methods and machines. The coal is then excavated using blasting and mechanical face shovels. The specific methods of open-cast mining vary by site.

Examples of the land after all the work has been completed are used to justify the process, which derives from the need to help Britain recover from wartime devastation.