Revision 2.0 by Dave Blodgett on February 1, 2023. To review the changes that were made, see “mainstems_version_history.txt” in the attached files section. Changes in version 2.0: 1) A bug in a data procesing workflow was fixed. Changes are documented: Blodgett, D.L., 2022, Updated CONUS river network attributes based on the E2NHDPlusV2 and NWMv2.1 networks (version 2.0, December 2022): U.S. Geological Survey data release, https://doi.org/10.5066/P9W79I7Q Levelpath identifiers were recalculated in the source dataset and are not compatible with version 1.
2) Workflows that leveraged the identifiers in version 1 of this data release should switch to this updated version at their earliest convenience. Reach out to dblodgett@usgs.gov if support if required.