1997. National Imagery and Mapping Agency. World Aqueducts is a line theme representing aqueducts and canals throughout the world. Objects in this layer have FACC (Feature and Attribute Cod... National Imagery and Mapping Agency.
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1997. National Imagery and Mapping Agency. World Lakes is a polygon theme representing inland water areas worldwide. This dataset is part of the Vector Map Level 0 database. The Vector Map ... National Imagery and Mapping Agency.
1997. National Imagery and Mapping Agency. World Land Ice Areas is a polygon theme representing areas of land ice such as glaciers, snow and ice fields worldwide. Features in this layer hav... National Imagery and Mapping Agency.
1997. National Imagery and Mapping Agency. World Miscellaneous Water Points is a point theme representig various hydrographic features worldwide. Features in this layer have an FACC (Featur... National Imagery and Mapping Agency.
1997. National Imagery and Mapping Agency. World Rivers and Streams is a polyline theme representing River and Streams worldwide. Features in this layer have an FACC (Feature and Attribute ... National Imagery and Mapping Agency.
1997. National Imagery and Mapping Agency. Smaller Rivers & Streams is a line theme representing inland water feature throughout the world. This layer was crated as a part of the VMap Level... National Imagery and Mapping Agency.