… that found it breached a First Nation‘s treaty rights … Rankin and Blueberry River First Nations Chief Marvin Yahey says … the ability of Blueberry River First Nations‘ members to “meaningfully … per cent of Blueberry River First Nations‘ territory is …… that found it breached a First Nation‘s treaty rights … Rankin and Blueberry River First Nations Chief Marvin Yahey says … the ability of Blueberry River First Nations‘ members to “meaningfully … per cent of Blueberry River First Nations‘ territory is …