The 1st, 2nd and 3rd editions of the historic 25-inch O. S. maps, published in 1889, 1900 and 1914 respectively, depict an aqueduct leading to this location, fed from a sluice on the valley stream at SH 7505046625. 350 metres upstream is a reservoir impounded by a stone-faced dam (NPRN 536530), and below this are some supports for a pipe or wooden launder (NPRN 536529). These two sources are probably the ones which drove a waterwheel-powered incline; the wheel pit remains in situ at SH 7512346917, on the east side of the incline below its crest. The incline ran from Floor 6 to Floor 2, lowering slabs to the mill on Floor 3 and raising slabs from floor 2 for the mill, and waste from Floor 2 up to Floor 6 for tipping. The 1st edition map records this phase. By 1900 the incline had been converted to a water balance with a two-track table, and the balance tank running on a lower track on its east side. Because water from the tank could only be discharged on Floor 3 or above, the tank track was extended upwards to a new incline head where there is thought to have been a header tank, fed from the same water supply. The tank could also be filled at Floor 6 level, and stone pillars which carried iron water pipes are still in situ on the west side of the incline extension. The new system is recorded by the 2nd edition map, and could handle slabs and waste in the same ways as the waterwheel-driven system.

The incline system is protected as a Scheduled Ancient Monument (CN333) as a unique surviving water-wheel powered incline, and the two sections are Listed, Reference Numbers 5877 and 5878, as water balanced inclines.
W J Crompton, RCAHMW, 23 August 2018.