PLSS (Public Land Survey System) is the system that the U.S. uses to mark land distribution, ownership, and boundaries. Each state has at least one baseline from which 6 mile by 6 mile parcels of land are marked. Each of these parcels are further divided into 36 one square mile parcels. This map shows the PLSS for Oneida County in Wisconsin. Each square represents a 6 mile by 6 mile township. On this map a town can be made up of more than one township.