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Compiled by Spatial Data Warehouse Ltd. (SDW), on behalf of the Government of Alberta, the ATS v4.1 Polygons - Quarter Section with Road Allowance layer contains polygons that represent the the location of Quarter Sections and adjacent Road Allowance Segment polygons, derived from the Master Alberta Township System points file published as ATS Version 4.1, dated March 31, 2005, and clipped to an updated Spatial Data Warehouse Ltd. (SDW) created version of the Alberta provincial boundary. |