How was the Yellowstone to Yukon boundary chosen?
The boundary of the Y2Y region has evolved over time. It is based on a combination of scientific understanding of geology, climate, vegetation, wildlife species and human cultures that bind the mountainous spine of the North American continent. It is also based on the experience and education of the scientists and conservationists that have been involved with Y2Y over the past 15 years. The Y2Y boundary is not a hard boundary, rather it is flexible and based on the circumstances of the issue in question. Since nature is interconnected, it is never possible to say where one ecosystem ends and another begins. So we drew a ‘soft’ boundary from Yellowstone to Yukon to outline the area of interest in which Y2Y and our partners operate. The boundaries of regions of interest and Priority Areas within the Y2Y region can ebb and flow in accordance with specific needs and knowledge. The core of the Y2Y landscape is the Rocky Mountains, the eastern edge of the Rocky Mountain Trench in British Col
