Search

Search Constraints

Start Over You searched for: Place United States Remove constraint Place: United States Theme Structure Remove constraint Theme: Structure Creator Institute for Water Resources (U.S.). Navigation Data Center Remove constraint Creator: Institute for Water Resources (U.S.). Navigation Data Center

Search Results

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.