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BLM OR Hydrography Flowline Arc Hub
HYD_FLOWLINE_ARC: This dataset contains flowline features from the US Geologic Survey (USGS) High Resolution National Hydrography Dataset (NHD). NHD Flowline features are linear... -
BLM OR Hydrography Point Hub
HYD_POINT: This dataset contains point features from the US Geologic Survey (USGS) High Resolution National Hydrography Dataset (NHD). NHD point features include springs, seeps,...
E' possibile inoltre accedere al registro usando le API (vedi Documentazione API).