© Alan Murray-Rust. Creative Commons License: www.geograph.org.uk/reuse.php?id=799149
Industry has been a very important part of the history of South Yorkshire and has been focussed upon the river valleys of Barnsley, Doncaster, Rotherham and Sheffield from the medieval period onwards. This zone consists of a mix of late 18th or 19th century disused industries and modern factories. These sites range from small water powered mills to large industrial complexes housed in long metal sheds. Not all current industry is included within this zone as many modern industries exist on mixed business and industrial parks and are considered within the Post Industrial zone.