National Hydrology Network

The Notional Hydrographic networks are datasets containing representations of surface water features. These features can include lakes, reservoirs, rivers, streams, islands, obstacles (e.g., waterfalls) and constructions (e.g., dams, wharves, dikes).

With national coverage, this is our most complete network. It is available to be used in many applications such as cartographic display, hydraulic analysis, or as base data. The network was started in 2004 with many federal, provincial and territorial partners. It has not been maintained since 2022 but remains a popular dataset.