Mines in the Hayle and Phillack Area Pyromorphite from Wheal Alfred. After a lifetime's study of the mines and miners of the South West, in the late 1960s and throughout the 1970s the late A. Hamilton Jenkin concentrated primarily on research into the lesser known mining ventures in Cornwall, the existence and progress of which could only be traced by a prodigious amount of original and,Industrial heritage sites to visit in the Lake District,The copper mines are free to visit. Location: South Lake District, near Coniston. Grid ref SD285992. 2.5 kilometres (1.6 miles) north west of Coniston, along the footpath up Church Beck. Honister Slate Mine. Underground tours of the slate mine, which has been mining green slate since the 1700s. Learn about the workings of the mine, the life of,Historical Mining Claim Maps - Ontario,Historical Mining Claim Maps . Before Claim Maps were available online, in which current and active claims may be viewed, claims were drawn on linen, paper and, later, Mylar sheets. Despite their age, there continues to be interest in the information provided by these historical mining claim maps.