Middle Mill (Flour) is shown and annotated on the 1873, 1899 and 1912 editions of the 25in Ordnance Survey map, which suggests that the mill was working at least until around the latter date. It lies on the east side of the old road between Northop and Halkyn, on the Afon Conway, and the formerly substantial mill pond lies to the west of the road. The present condition of the mill is unknown.
What is believed to be the former miller's cottage, now extensively rebuilt, originally lay on the northern edge of the pond before it was reduced in size; the house is claimed to have been built in the early 1700s and used as a saffron mill.
B.A.Malaws, RCAHMW, 18 September 2007.