High Resolution: National Hydrography Dataset Flowline Feature (line)

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High Resolution: National Hydrography Dataset Flowline Feature (line) This data set consist of routes that make up a linear surface water drainage network. The National Hydrography Dataset (NHD) is a feature-based database that interconnects and uniquely identifies the stream segments or reaches that make up the nation’s surface water drainage system. NHD data was originally … Continue reading High Resolution: National Hydrography Dataset Flowline Feature (line)

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