Meadowhall Shopping Centre built in post modern style. Construction of the shopping centre has destroyed most above ground traces of Hadfields 1897 East Hecla Works. Hadfield was prominent in the development of Alloy Steels especially Manganese Steel which was produced by the quenching in water of steel at a 1000 degrees centigrade. This was used first in railway wheels, crossings and digging machines but with the advent of the first world war its potential for use in armour piercing shells, tank treads and helmets. Later inventions included Silicone Steel which was used in electrical transformers. (Bayliss 1995, 33) (www.tilthammer.com/bio/hadf.html - updated 2003) Previous map and archival research by Scurfield (1986) indicates that this area was valley floor meadows until construction of the shopping centre.