https://www.canada.ca/en/environment-climate-change/services/national-wildlife-areas/locations/tway/pamphlet.html
Tway National Wildlife Area pamphlet - Canada.ca
When Tway National Wildlife Area (NWA) was established in 1971, water levels in the wetlands were too unstable to provide suitable habitat for waterfowl.
tway national wildlife areapamphletcanada