Possible mill site north of Ryton village

Description of this historic site

Letter suggests that the original demesne mill in Ryton was to the north of the village.

Notes about this historic site

1 Detailed letter arguing that there was a second mill in Ryton parish and that it was located to the north of the village. Also argues that this was the original demesne mill rather than the known mill site further away from the village to the west. Seems reasonable though circumstantial.
2 Second letter details search of aerial photos. No additional information other than references of photos examined.