Raasay: Ironstone processing works - calcining kiln bases

Raasay Ironstone Mine and Processing Works

These structures are the remains of the ore calcining kilns, though the five vertical cylindrical kiln structures have been demolished. The original appearance of the kilns can be seen in the link below.

Background
The two adits of Raasay No.1 ironstone Mine were situated about 2.5 km north of East Suisnish pier and worked the Jurassic (Upper Lias) age siderite and chamosite ores from 1914 to 1920. The mine was owned and developed by William Baird & Co. who also built the terraces of houses in the village of Inverarish to house the mine workers, many of whom were German prisoners of war. A tramway and incline connected the mine to the processing works (crusher, calcining kilns, gantries, loading hoppers) at East Suisnish.

A second pair of mine adits (Raasay No.2 Ironstone Mine) just north of Inverarish were also opened up around the same time but never went into proper production due to geological difficulties (faulting).

There was also a small amount of opencast outcrop mining carried out near the No.1 Mine, again around the same time.

The works were dismantled by 1943 but the site is now a scheduled protected monument.

A view of the works in 1917 is here:
geoscenic.bgs.ac.uk/asset-bank/action/viewAsset?id=1343