Canadian Lake and River Hydrofabric (CLRH)
The Canadian Lake and River Hydrofabric (CLRH) is a nation-wide geospatial data set describing the properties and connectivity of subwatersheds, lakes, and rivers at a roughly 5km2 resolution. It includes local drainage areas of all lakes larger than 0.1 km2.
The geofabric associated with the drainage areas upstream of the points on the maps may be downloaded in the form of shapefiles.
A Google colab site enabling the manipulation of CLRH data using BasinMaker is accessible here
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(All data is provided 'AS IS' without warranties of any kind, including those of fitness for a particular purpose)
(c) 2023-2025 University of Waterloo Hydrology Research Group