 PA 340 comes to an intersection with PA 897 and runs concurrent with that route before PA 897 turns south in the community of White Horse.Following this, the road runs east through more areas of farm fields, crossing Pequea Creek and passing through the community of Cains.PA 340 enters West Caln Township in Chester County and becomes West Kings Highway, passing southeast through woods and fields and reaching an intersection with PA 10 in Compass.