Quaternary watershed boundaries

Note: this Watershed, Quaternary data has been replaced by the Ontario Watershed Boundaries.

A watershed, also known as a catchment basin, includes all of the land that is drained by a watercourse and its tributaries.

Watersheds are split into 4 categories:

  • primary
  • secondary
  • tertiary
  • quaternary

Quaternary watersheds are subdivisions of tertiary watersheds.

These divisions are based on the federal framework originally known as the Water Resources Index Inventory Filing System.

Contact

Ontario's Open Data Team opengov@ontario.ca

Data

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 2010-01-01 - 2020-07-02

Supporting Files

Additional Info

Field Value
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Geographic coverage Ontario
Geography Breakdown None
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Last Validated Date 2020-07-17
Update frequency As required
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