Pimachiowin Aki (which means Land that gives life in Ojibwe, ᐱᒪᒋᐅᐃᐧᓂᐊᑭ) is a large proposed UNESCO biosphere reserve and World Heritage Site located in the Boreal Forest that covers parts of Manitoba and Ontario. The proposed project area includes over 43,000 square kilometres (17,000 sq mi) is in similar size to the area of Denmark and would mean that it would be larger than 100 other countries in the world. The project is also supported by five First Nations reserves including Poplar River First Nation, Little Grand Rapids First Nation, Pauingassi First Nation, Pikangikum First Nation, and Bloodvein First Nation. The area also includes the Manitoba Provincial Wilderness Park of Atikaki Provincial Park and the Ontario Woodland Caribou Provincial Park. The proposed World Heritage Site all started with the signing of the Protected Areas and First Nation Resource Stewardship in 2002 by the First Nations of Little Grand Rapids, Pauingassi, Poplar River and Pikangikum.
The Pimachiowin Aki Corporation believes there are many benefits to a UNESCO site for resident First Nations peoples such as examples in communities near their own UNESCO sites found a new source of pride in the designated area and they also got more worldwide attention. The Pimachiowin Aki Corp. believes this could mean more visitors and tourists from all over the world, a need for visitor education programs and facilities, accommodations and food services for visitors, more jobs for tour guides, fishing guides, First Nations artists, people to share and teach Anishinabe culture, increased support and help from other organizations, governments, businesses and volunteers to manage the site, and more say over how the land is protected and managed for the future.