2014. National Atlas of the United States. This line shapefile includes Global Map data showing the canals, aqueducts, and the Intracoastal Waterway in the United States, Puerto Rico, and th... National Atlas of the United States.
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2014. New Zealand. National Topographic/Hydrographic Authority. This polygon shapefile represents aqueducts and canals in New Zealand. The Global Map New Zealand version 2 airport and road were developed from t... International Steering Committee for Global Mapping.