There are the remains of a disused brick earth pit south of Petherwick House, near Ryarsh. The pit covers an area of aproximately 30X40m and is up to 15-20m deep. It runs parallel with the hollow way to the west from Aldington, now cut through by the M20. Access is from the hollow way. There are stepped banks into the east side of the pit. There are also signs of other possible workings at the south end of the pit. It is currently overgrown with large oak trees. The date of the workings is unknown.