Description

This data resource provides hydrologic and water management information for the Grand River watershed. The watershed extends from the headwaters of the Grand River near Luther Marsh Reservoir to the mouth of the Grand River at Port Maitland on Lake Erie. This information is provided to the Library by the Grand River Conservation Authority (GRCA), however many of these layers are also available for download from the Grand River Information Network. The resource includes the following vector and raster grid data sets.

GRCA vector data

  • Aquifers
  • Cross sections
  • Dams
  • Ecoregions
  • Erosion Hazards
  • Flood Hazards
  • Floodplains
  • Flow gauges
  • Hydrologic response unit
  • Forest management compartments
  • Municipal boundaries
  • Official watershed boundaries
  • Conservation lands
  • 2 m contours
  • Parks
  • Poorly-drained soils
  • Properties
  • Rail Trail
  • Rain gauges
  • Recharge
  • Registered schedule areas
  • River Slopes
  • River watch sites
  • Sewage treatment plants
  • Slope erosion hazard
  • Snow course sample sites
  • Subcatchments
  • Virtual drainage
  • Water flow gauges
  • Water quality gauges
  • Wells
  • Wetlands
 

GRCA raster grid data

  • Depth to bedrock
  • Ground surface
  • Overburden thickness
  • Sand and gravel thickness
  • Water table
  • Potentiometric surface
  • Vertical hydraulic gradient
  • Depth to water table
  • Depth to first aquifer
  • Registered schedule areas
  • Vulnerability to contamination
  • Discharge area
  • Landcover (data from 1999)
 

Spatial reference and data type

These data sets are available in Universal Transverse Mercator (UTM) co-ordinates; horizontal datum is North American Datum (NAD) 83. These data are stored as Esri shapefiles. 

Data access

To request this data, please fill out the Ask-Us form and include which layers (shapefiles) you are interested in obtaining. The dataset will be shared with you via OneDrive upon completion of the data release agreement form. You may also make an in-person appointment using the same form.

Use restrictions/licensing/copyright

These data are provided for personal use for academic, research, and/or teaching purposes. A data release agreement must be agreed to before these licensed data can be released. The Grand River Conservation Authority must be acknowledged on any derivative product, whether printed or electronic, including for example, a printed map, a raster or vector graphic, a web-based application, etc. Patrons are advised to fully respect the provisions of Canada's Copyright Act as well as terms and conditions imposed by the data provider.

Citation

Grand River Watershed data [computer file]. Cambridge, Ontario: Grand River Conservation Authority, 2021.

Sample view of the data

Luther Marsh Area Wetlands