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National Hydro Network (NHN) - 45 new watersheds (WS)

April 6th, 2021

Summary : 45 NHN-CL3 watersheds are published.

With the publication of these new watersheds, over 90% of watersheds covering Canada allow for better analysis of hydrological networks.


  • All 44 of Nova Scotia’s watersheds have been updated with provincial data,
  • 1 Canada/USA bi-national watersheds was regenerated.

We are in the process of restructuring the NHN model. This is the last release of the NHN in its current form.

For more information about the Hydrographic Network Quality, please refer to the Completeness Level.

Publication map

This map shows the hydrographic watersheds affected by this release.

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