1861 England and Wales navigable waterways
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ArcGIS shapefile of the 5550 miles of navigable waterways of England and Wales in 1861. This shapefile derives from a time dynamic GIS and database of navigable waterways of...
1861年英格兰与威尔士境内5550英里通航水道的ArcGIS形状文件(shapefile)。该形状文件源自一套覆盖通航水道的时态动态地理信息系统(GIS)及数据库……



