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The Grand River Simulation Model (GRSM) is a computer model of the watershed. We use it to understand how changes at wastewater treatment plants might affect water quality. A model is necessary because changes in water quality are caused by a complex interaction of many factors that change over time.
You can access a variety of maps and data resources directly from the Grand River Information Network (GRIN) website. GRIN guides you to various interactive viewing and data download tools to help you quickly find the information you need.
The 2006 Grand River Conservation Authority (GRCA) GIS Vector and Raster dataset contains very detailed hydrologic and management information for the Grand River Watershed area. The file size of the entire vector dataset is approximately 650mb.
Providing access to additional items for download that don't have a home elsewhere. Groundwater models with related documentation, as well as ready-made maps and various reference materials, are available in this section. The Grand River Simulation Model (GRSM) is a computer model of the watershed.
We provide a variety of datasets, models, and static maps for download. GRCA maintains a collection of data layers for its Geographic Information System (GIS). You can download over 50 layers of data directly from our data catalogue. [Photo Credit: Jie Huang with permission]
Various GIS coverages developed by the Grand River Conservation Authority, as part of their mandate to manage the Grand River watershed. Data covers the Grand River watershed area only.
The GRCA offers a variety of maps and data resources directly from the Grand River Information Network (GRIN) website. GRIN guides you to various interactive viewing and data download tools to help you quickly find the information you need.
