The Lake District mountains are full of mineral veins. Many have been discovered and worked over the past 1,000 years. Many still remain to be discovered. The last working metal-ore mine in the Lake District, the Force Crag Mine, closed in 1986. It is believed that mining commenced at Force Crag during the fifteenth century. Today, remains of this past extensive industry lie abandoned on the mountainsides and are now considered to be an iconic reflection of the Lake District's industrial past. They blend in well with other iconic 'industrial' structures such as stone walls, drove roads and fell farms that exist throughout the district. For many years now industrial historians have studied these workings and also the lives of the skilled miners who spent their careers high on Lake District mountainsides, working the veins. Concern for the loss of many of these ancient sites has developed over recent years. In 1989 a report produced by local industrial archaeologists highlighted a list of twenty-seven former mining sites on the fells considered to be of such exceptional importance to the history of the Lake District communities that they should be given future protection. Many of these sites have been included in this definitive illustrated guide.

The remnants of slate mining and quarrying form as much a part of the Lakeland historic landscape as the stone walls, heathered moorlands and Lakeland farms do. A significant number of local families currently living in Lake District villages has had some connections with the slate industry in the past, and a few are still involved in the industry today. Although many believe that slate was worked during the Roman era, the present 'style' of slate-working started shortly after the Norman Conquest to help build the Norman castles, abbeys and priories in Britain. The Normans were familiar with slate; it had been worked for centuries earlier at sites in the Ardennes and in the Loire valley. By 1280 there are references to slate being worked at Longsleddale and by the fifteenth century the industry was well established throughout the district. Using historic detail, photographs and captions, Slate Mining in the Lake District: An Illustrated History explores the history of the industry in the Lake District. Considering slate mining's key role in the heritage of this iconic national park, Alastair Cameron also details its present-day operations.