The major workings on the western side of Gunnerside Gill, including the historic 16th-century North Hush, were significant in the mining history of the area. Later, underground operations expanded, encompassing various levels such as Dolly Level, Priscilla Level, Woodward Level, Sun Hush Level, and the notable Sir Francis Level, which served as the primary drainage and haulage working for the region.

These workings accessed deposits on several veins, including:

Lownathwaite North, Middle, & Sun veins

Alderson’s vein

Moor House vein

Watersykes vein

Blind Gill vein

Barbara vein

Reformer vein

1705 Thomas Wharton (5th Lord) 1736-1756 Trustees of the Duke of Wharton 1693 James Gorton & Co. 1762-1769 Richard Alderson & Co. 1784 George Jackson & Co. 1812-1832 Hopper & Co. 1833-1836 Sundry waste workers 1836-1847 Ottiwell Tomlin & C