One of the few remaining areas of working light metal trades in Hillsborough. The first documentary reference to a wheel is made in 1664 (Ball et al. 2006, 69) and it is described as a cutlers grinding wheel through the 18th century. The site of the original works is now covered by the La Plata works although parts of the dam and weirs survive. This makes legibility of the previous types partial. Scurfields (1986) reconstruction of Harrisons 1637 survey suggests the area may have once been wood pasture. Prior to this the area is shown as irregularly shaped fields probably resulting from piecemeal enclosure. Legibility is invisible.