The document relating to the dissolution (Schubert 1957) refer to the “bloomsmithy”
at Laskill and a forge at Rievaulx itself. Both have been located. The slag analyses
demonstrate that the furnace is a proto-blast furnace generating a slag with less
than 10% FeO. The smelted iron was sent to the forge at Rievaulx
Geophysical survey of Laskill furnace site, Source R Vernon.
Leat at Laskill site, looking south-east. Photo: Author)