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2013. Uruguay. Geographic Military Service. This line shapefile represents rivers in Uruguay. This layer is part of Global Map Uruguay version 2. Global Map data were developed under the coop... International Steering Committee for Global Mapping.
2013. Institute for Water Resources (U.S.). Navigation Data Center. This point shapefile contains the locations of waterways locks in the United States. The Navigation Data Center had several objectives in developin... United States. Bureau of Transportation Statistics.