Text Size

Great Lakes and St. Lawrence River

Almost all of us in Southern Ontario and many of us in Northern Ontario live in a watershed managed by a Conservation Authority and these are nestled together into one big Great Lakes – St. Lawrence River basin. To get a better idea of which Conservation Authorities are within which Great Lakes or St. Lawrence River watershed, click on one of the coloured watersheds below.

Superior Basin Huron Basin St. Lawrence Basin Ontario Erie Basin

Conservation Authority watershed plans, programs, and activities help Ontario to protect the important resources we rely on every day within the Great Lakes and St. Lawrence River and their watersheds.

This area is made up of forests, wetlands, rivers, streams, aquifers, plants and animals that we rely on to supply water for drinking, manufacturing, agriculture, energy production, fishing, food processing and many other daily uses. We are also drawn to water for swimming, boating, camping, picnics and lots of other outdoor activities.

Technical Workshop on Nutrients in the Nearshore
Final report and Resources from a 2009 Workshop which identified watershed and nearshore science needs and gaps on a lake-by-lake basis as well as the types of watershed actions that could be taken to improve nearshore water quality in Ontario watersheds.

An Evaluation of Water Resource Monitoring Efforts in Support of Agricultural Stewardship in Watersheds of the Great Lakes
As part of a commitment to restore, protect and conserve watersheds in the Great Lakes basin, Conservation Ontario partnered with the Ontario Ministry of Agriculture, Food and Rural Affairs (OMAFRA) to conduct a workshop and do research around water resource monitoring. There was clear support for improved communication and data sharing that meets a variety of needs in order to support the goal of Healthy Great Lake watersheds.



Conservation Ontario's Great Lakes Sustainability Position (2008)