PLS Township. In the Public Land Survey System a Township refers to a unit of land, that is nominally six miles on a side, usually containing 36 sections, some of which are designed to correct for the convergence of meridians or range lines, with boundaries conforming to meridians and parallels within established limits.WA Public Land Survey Townships MetadataClick for downloadService URL:  https://fortress.wa.gov/dnr/arcgisext/weba_ext_prod4/rest/services/Cadastre/WADNR_Cadastre_OpenData/MapServer/8