Ontario Watershed Boundaries
This collection represents the authoritative watershed boundaries for Ontario. The data is based on a framework similar to the Atlas of Canada Fundamental Drainage Areas and the United States Watershed Boundary Dataset, however it adopts a more stringent scientific approach to watershed delineation. The Ontario Watershed Boundaries (OWB) collection includes five data classes: * OWB main: all levels from primary to quaternary and 5th and 6th levels in select areas * OWB primary: all primary watersheds or major drainage areas in the Canadian classification * OWB secondary: all secondary watersheds or sub drainage areas * OWB tertiary: all tertiary watersheds or sub sub drainage areas * OWB quaternary: all quaternary watersheds or 6-digit drainage areas. The OWB data replaces the following data classes: * Provincial Watersheds, Historical
Made available by the Government of Ontario
These resources are not under the control of the Government of Canada and the link is provided solely for the convenience of our website visitors. We are not responsible for the accuracy, currency or reliability of the content of this website. The Government of Canada does not offer any guarantee in that regard and is not responsible for the information found through this link.
Visitors should also be aware that information offered by this non-Government of Canada site is not subject to the Privacy Act or the Official Languages Act and may not be accessible to persons with disabilities. The information offered may be available only in the language used by the site. With respect to privacy, visitors should research the privacy policies of this non-government website before providing personal information.
- Publisher - Current Organization Name: Government of Ontario
- Licence: Open Government Licence – Ontario
Data and Resources
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Ontario Watershed BoundariesHTMLEnglish dataset HTML
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Limites des bassins versants de l'OntarioHTMLEnglish dataset HTML
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Original metadata (https://data.ontario.ca)HTMLEnglish dataset HTML
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Original metadata (https://data.ontario.ca/fr)HTMLFrench dataset HTML