This area represents the northern reaches of the Porter and part of the Sheaf valley. In the early 19th century the area included 3 water-powered sites: the Porter providing power for the Hynde or Sylvester Wheel (c.1600) and New Pond Mill (c.1581)and the Sheaf powering the Marriot Wheel or 'White Lead Works' (c.1732). Land surrounding these sites was shown as enclosed farmland (probably originally valley floor meadows) until the 1808 Fairbank plan. By 1851 Sylvester Wheel appears to have been converted to steam power with the former dams retained and labelled 'Reservoirs' (all from Crossley 1989). This area was laid out for development during the early 19th century. The 1st edition OS map of 1855 shows about half the area built up and by the 1894 OS map, all of the area is built upon with a mixture of steelworks, workshops and workers housing. Legibility of this historic development is partial as this area still contains some old metal trade buildings, but there has also been substantial demolition and modern development.