Working to Protect Ontario’s Watershed Security – water for people and for nature

Note: This website will be extensively revised between late November and early 2024 as we implement our new focus: working to protect watershed security – water for people and for nature.

Please see our transitional OHI Brochure November 2023, and feel free to reach out with any questions or comments via andrew at ontarioheadwaters  dot ca. 

Recent mapping projects have included Watershed Management in South-central Ontario, The Contested Countryside, and an Evaluation of Watershed Hydrology and Land Use in the GGH. 

Another resource you might enjoy is our YouTube Channel, with numerous videos, the most recent of which is The Impact of Aggregate Extraction in the Credit Watershed. .

Finally, please note that we are also working to re-launch the Coalition of Ontario Watershed Guardians, at, probably in early December. 

Quick-links to other OHI digital profiles –
OHI Twitter OHI Facebook Canada Helps