A watershed is an area that drains all precipitation received as run-off or base flow (from groundwater sources) into a particular river or set of rivers. Watersheds provide habitat for aquatic and terrestrial wildlife, and provide people and animals with fresh water to drink. Many human activities, such as pollution, run-off, devegetation, and erosion can degrade watershed health, leading to problems for the ecosystems and people that reside within the watershed.
The Souris and Area Branch of the PEI Wildlife Federation manages 24 watersheds in northeastern Prince Edward Island, representing 8.8% of the total area of the province. These watersheds have some of the most pristine natural areas and rivers found anywhere in PEI. Some of the prominent watersheds under the management of the Souris and Area Branch include: