Craven lime works

I've been in the Yorkshire Dales this week and read about this place; a little north of Langcliffe (near Settle), it's a piece of industrial history. This is a massive lime kiln, used for many years to convert limestone into, well, lime, used for improving the local acidic soil amongst other things. This picture is looking along one long length of a large elongated torus. It's hard to imagine the back-breaking toil of people who had to first fill this space up and then shovel it all out again a few days later, after the firing. A great location for industrial heritage photography.