KELSTERTON (CILSTRYM), a township, in the parish of NORTHOP, Northop division of the hundred of COLESHILL, county of FLINT, NORTH WALES, 2 miles (N. E.) from Northop, containing 131 inhabitants. This place borders on the estuary of the Dee, and extends some miles over its sands, which are dry at low water, but may be brought into cultivation at a trifling expense. An extensive ale and porter brewery was erected here in 1818, being the first established in the county: the principal consumption is at Chester and the adjoining counties. Preparations for procuring coal are now in progress, the new channel formed for the Dee, through the sands, affording every facility for its conveyance to other places.