Early in May 18 I walked across to Stonstrey Bank, Black Coppice from Jepsons Gate, looking for the chambered cairn (site 40) mentioned in the archaeological survey carried out in the 1980's. The area is covered with large and small millstone grit stones. I had read that unfinished millstones were close by and found them very easily. I have created 3D models of the 2 most complete millstones shown below.
The next week I went back with the drone to conduct an aerial survey of the entire area to see if I could identify any more millstones and pick up clues to how they were made.