With John Grattan, professor of geo-archaeology at Aberystwyth University, Adam Walton searches the Cambrian Mountains for a Bronze Age copper mine.
Discover 11,128,835 listings and 278,133 playable programmes from the BBC
With John Grattan, professor of geo-archaeology at Aberystwyth University, Adam Walton searches the Cambrian Mountains for a Bronze Age copper mine.
Comprehensive News and Sport, the latest information and the best entertainment for Wales.
