Ontario integrated hydrology data

Data used to generate watersheds and support provincial-scale hydrology applications like:

  • watershed generation
  • hydrologic modelling
  • watercourse network analysis

4 key datasets are represented in each data package:

  • stream network (Enhanced Watercourse)
  • hydrology-enforced DEM (Stream Enforced DEM)
  • flow direction grid (Enhanced Flow Direction - EFDIR)
  • raster representation of the stream network (StreamGrid)

For the first time, integrated hydrology data is complete for the entire province making it possible to create a watershed for any location in Ontario.

*[EFDIR]: Enhanced Flow Direction


Ontario's Open Data Team opengov@ontario.ca


Data Available

The data described here is available for you to use. [Learn more]
[See the licence for how you're allowed to use this data.]

Covers 2012-10-17 - 2012-10-17

Supporting Files

Additional Info

Field Value
Geographic coverage
Geography Breakdown
Source URL/Address
Author Email
Maintainer branch
Last Validated Date 2015-04-30
Update frequency Periodically
Access instructions