The most west and southern tip of the British mainland is littered with industrial buildings with a history and pre-history of mining and trade. Here I looked across the moor to the Ding Dong mine. Each ruin seems to comprise a block building like a castle keep, a chimney and a pit.
Here is a glimpse of Dong Dong close up, the side of the building and the opening to the mine shaft. Covered by a grate, it drops maybe a hundred feet, perhaps more. Men were lowered down that pit once.
Here is another, by the roadside, the map did not even give it a name. I drew the stack, I guess that opening beneath was a hearth of sorts. Behind the scrub is the distant sea. These sketches were drawn in Indian ink (or graphite for the middle sketch), then conte crayon, then watercolour, then another layer of crayon. I love the use together of translucent and opaque media, and the crayon as a resist for the overlying wet paint.