Unfinished millstone, Ilkley
Introduction
The photograph on this page of Unfinished millstone, Ilkley by Humphrey Bolton as part of the Geograph project.
The Geograph project started in 2005 with the aim of publishing, organising and preserving representative images for every square kilometre of Great Britain, Ireland and the Isle of Man.
There are currently over 7.5m images from over 14,400 individuals and you can help contribute to the project by visiting https://www.geograph.org.uk

Image: © Humphrey Bolton Taken: 28 Apr 2010
The rock is millstone grit, and there are hundreds of blocks of it on top of the woodland floor - no need to quarry for it. I wonder how many hours it took to make a millstone, and why work stopped on this one. The rock on the right might have provided the next millstone.