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Updated CONUS river network attributes based on the E2NHDPlusV2 and NWMv2.1 networks


Publication Date


Blodgett, D.L., 2022, Updated CONUS river network attributes based on the E2NHDPlusV2 and NWMv2.1 networks: U.S. Geological Survey data release,


Note: this data release has been superseded by version 2.0, available here: The comid field of these data can be used to join to the NHDPlus version 2 flowline comid or catchment featureid attributes. The included attributes follow the same data model as the NHDPlusV2 but include numerous updates and improvements to network connectivity. All attributes that depend on network connectivity have been recalculated. These attributes are based on the National Hydrography Dataset Plus V2.1 (NHDPlusV2) network geometry and modifications retrieved from the National Water Model V2.1 (NWMv2.1) and "E2NHDPlusV2_us: Database of Ancillary Hydrologic Attributes and Modified Routing for NHDPlus Version 2.1 Flowlines" [...]


Point of Contact :
David L Blodgett
Originator :
David L Blodgett
Metadata Contact :
David L Blodgett
Distributor :
U.S. Geological Survey - ScienceBase
Publisher :
U.S. Geological Survey
USGS Mission Area :
Water Resources
SDC Data Owner :
Integrated Modeling & Prediction Division

Attached Files

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enhd_nhdplusatts.parquet 159.55 MB application/unknown
enhd_nhdplusatts.fst thumbnail 304.71 MB image/vnd.fst
enhd_nhdplusatts.csv 488.38 MB text/csv


These data are part of a broader reference hydrologic geospatial fabric being developed in support of national integrated hydrologic modelling and data integration.

Additional Information


Type Scheme Key
DOI doi:10.5066/P9W79I7Q

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