Focusing upon the Mission Métis of Lac la Biche, the author examines the use of French, Cree, and English as a means of garnering insight into the mechanisms of western Canadian Métis cultural and linguistic variation. He concludes that the relationship of the people to their environment is inextricably bound to an understanding of their language and culture and that the delineation of cultural boundaries is, therefore, a highly complex matter. Published in English.