This paper combines three studies on the topic of native demographics in western Canada. The first discusses Athapaskan and Algonkian groups as well as Métis in the beginning of the nineteenth century across north-western Alberta. The second study discusses the Métis in the same region but later in the century. The third study focuses on one population, following it from its "founding" to the present day population found in the Peace River, Jasper and Grande Cache. Together the studies represent an overview of the cultural, environmental and demographic changes that occur as part of the contact between two societies and the emergence of a new hybridised culture. The study also outlines the direct and indirect effects on native demography as it is the primary aim of the study to explore the relationships between cultural and physical environmental changes caused by contact with alien societies on the one hand and demographic changes and cultural responses by native populations on the other hand.