The Kainai Iinnii Rematriation Project (KIRP) is an eco-cultural restoration project that centers around the restoration of the land and culture of the Kainai (Blood) First Nation by re-introducing plains bison (Bison bison bison) back native mixed-grass prairie pastures on the North End region of the Blood Reserve. Bison have been absent from these lands for ~155 years and First Nation-led environmental research is being undertaken to study and better understand how re-introducing plains bison can benefit mixed-grass prairie ecosystems. Bison are considered both an ecological and cultural keystone for the Blackfoot/Kainai.