Grand River Information Network

Various GIS coverages in vector and raster format 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 Grand River watershed includes parts of many counties and municipalities in Ontario, including City of Brantford, City of Hamilton, Brant County, Oxford County, Perth County, Dufferin County, Grey County, Haldimand County, Norfolk County, Regional Municipality of Halton, Regional Municipality of Waterloo, Wellington County and the First Nations properties of Six Nations and New Credit.

Vector layers available through the Grand River Conservation Authority include: Cross Section, Damns, Drainage Classification, Drainage-Network, Ecoregions, Flood Map Index, Floodplain, Forest Management Compartments, Dynamic Lake Beaches, Lake Erosion, Lake Flood Areas, Lake Shoreline Reaches, Municipal Boundaries, Properties enrolled in Managed Forest Tax Incentive Program (property.shp),  Rail Trails, Rain Gauge Stations, River Watch Sites, Sewage Treatment Plants, Slope Erosion, Slope Valley, Snow Course, Source Protection Boundaries, Subcatchments, Water Flow Gauges, Water Wuality monitoring Sites, Watershed Boundary, and Wetlands.

Available raster layers include: Depth to Bedrock, Depth to First aquifer, Depth to Water Table, Discharge Areas, Ground Surface, Hydraulic Gradient, Land Cover (1999), Overburden Thickness, Potentiometric Surface, Sand and Gravel Thickness, Vulnerable Areas, and Water Table.

Orthoimagery is also provided through this dataset.  Images were flown in 2006.  Data are provided in ~2km tiles, which must be downloaded one-by-one from the website.

PLEASE NOTE: The Grand River Conservation Authority requires that you register a username and password before you can access the data.  You must use a valid e-mail address, because data download requests are sent to the provided e-mail address.