The term "Lajoie Lake" does not correspond to a widely recognized geographical feature with established documentation in major encyclopedic sources. As of current knowledge, there is no confirmed lake by this name in authoritative databases such as the Geographical Names Board of Canada, the U.S. Geological Survey's Geographic Names Information System (GNIS), or other prominent cartographic references.
The name "Lajoie" is of French origin, meaning "the joy" or derived from a family surname, commonly found in French-speaking regions of Canada and among French diaspora communities. It is plausible that "Lajoie Lake" could refer to a minor, locally named body of water on private property, within a regional park, or in an area with limited documentation. Alternatively, it may appear in informal, fictional, or proprietary contexts such as in real estate developments, recreational maps, or indigenous oral traditions not yet fully cataloged.
Without verifiable published sources or official recognition, the existence and characteristics of Lajoie Lake remain unconfirmed.