| Waldsea Lake | |
| Location: | Saskatchewan |
| Pushpin Map: | Saskatchewan#Canada |
| Pushpin Map Caption: | Location in Saskatchewan |
| Type: | Salt lake |
| Outflow: | None |
| Basin Countries: | Canada |
| Cities: | None |
Waldsea Lake[1] is a salt lake in the central part of the Canadian province of Saskatchewan, about east of Saskatoon, near Carmel. The lake is partially saline with strong concentrations of sodium, sulfate, magnesium, and chloride ions.[2] It is part of the terminal Lenore Lake basin, which is within the Carrot River watershed.[3] The Lenore Lake basin includes several other saline lakes, such as Lenore, Basin, Middle, Frog, Ranch, Murphy, Flat, Mantrap, Houghton, and Deadmoose, as well as the freshwater St. Brieux and Burton Lakes.[4] The basin has no natural outlet.[5] [6]