The ironstone mines of the North York Moors and the Cleveland Hills were of great national economic importance. A sample of the better preserved sites, including a representative range of extraction techniques and structures, are considered to merit protection. Rosedale witnessed an explosion in iron mining in the mid-19th century, its population increasing from 548 in 1851 to 2839 in 1871. This has left an extensive industrial landscape across and around Rosedale which is amongst the best iron mining landscapes known nationally. The monument forms an important and well preserved core area of this wider landscape. The kilns are well preserved and retain a wide range of associated mining and transport features which aid our understanding of the way in which the kilns functioned as part of the wider complex.