Callington Mill, Oatland. A working flour mill built in 1837. It was restored earlier this century and reopened in 2010. (Wikipedia.)
These photos are from 2008, while restoration was in process. Starting with the outside, then inside, then other buildings on the site.
There is another post from 2015, after the mill was reopened, which has photos of the outbuildings (although taken in low light).
This, and the next few, are the top level.
Stairs for the level below
The wooden structure is the top of the staircase.
Looking towards the main street.
Stable. Internal photos from 2015.
Miller's cottage. Grainy internal photos from 2015.