Two hundred years ago, at the base of the Sourland Mountain on the border of Hillsborough and Montgomery Townships where the East Mountain Road met the road to Blawenburg, there was a tiny hamlet by the name of Post Town - so named because this was a place to send and receive mail. By the 1850s the name of the little village had been changed to Plainville and soon boasted a store, two blacksmith's shops, schoolhouse, hotel, and several residences. Today they are all gone.
