Geograph - photograph every grid square

Alongside the Monsal Trail near Miller's Dale Station. These kilns operated from 1880 to 1944 and produced 50 tons of quicklime per day in a batch process. The white boxes high on the structure are for swifts as they need to launch themselves from a height when they first take to the air and can then apparently fly continuously for three years.

The kilns are built into and onto the cliff face and the draw holes are accessed through an opening blasted in the rock. The massive concrete buttresses were added in the 1920s.