1978 Twin Cities Land Use Map from the Twin Cities Metropolitan Planning Commission, GIS Data Files

High-quality GIS land use maps for the Twin Cities Metropolitan Area for 1978 that were developed from paper maps (no GIS version existed previously).本数据集包含1978年双子城都会区的高质量地理信息系统（Geographic Information System，GIS）土地利用地图，此类地图均基于纸质地图数字化制作而成，此前该区域从未存在对应的GIS版本土地利用数据。