ArcGIS REST Services Directory
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NHDLayers (MapServer)
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Legend (DepBaseLayers/NHDLayers)
NHD Flowline (0)
NHD Areas (1)
NHD Waterbodies (2)
Hydrologic Unit Code (HUC) 8 (3)
Hydrologic Unit Code (HUC) 12 (4)