National Hydro Network (NHN)

NHN poster
Get access at no cost to the National Hydro Network (NHN) datasets, metadata and Work Units.
Get access to NHN data and metadata.
Get and print an image map of your drainage area in PDF format.
View a sample file (10 248 KB)
Navigate through NHN data with the help of an application based on WMS standards. Create your own views by adding additional themes available through the GeoBase portal and combining them with NHN data.
NHN Index
Download the national index of NHN Work Unit Limits (NHN drainage areas) for the entire Canadian landmass.
Differences in NHN data
Learn about the known particularities, deviations or differences found in NHN data as opposed to the National Hydro Network standards and specifications.
Description / Documentation
Description of the National Hydro Network and access to the product standards and specifications, collection metadata as well as other supporting documentation.
Description of the National Hydro Network Implementation Strategy, its instruments, the NHN Completeness Levels, the NHN partner organizations, and the steps ahead.
Get access to user guides, use cases, tools and other information to facilitate and promote the use and exploitation of NHN data. For instance, how to rapidly use and exploit NHN data with the ArcMap MXD Project.
Discrepancies / Comments
Report or consult NHN discrepancies or submit comments and suggestions.