This place must have looked like hell on earth. In its hey day great quantities of limestone was burnt in kilns like this. Coal and limestone were fed in at the top and the lime was raked out at the bottom with ships awaiting a stone throws away, to carry the lime to all "airts and pairts" (everywhere.) Great clouds of noxious gasses and flames errupted from the kilns, the process going on day and night.

The kiln

For limestone refining on a smaller scale see East Lomond.