Chisasibi in the context of Grand Council of the Crees

East Cree, also known as James Bay (Eastern) Cree, and East Main Cree, is a group of Cree dialects spoken in Quebec, Canada on the east coast of lower Hudson Bay and James Bay, and inland southeastward from James Bay. Cree is one of the most spoken non-official aboriginal languages of Canada. Four dialects have been tentatively identified including the Southern Inland dialect (Iyiniw-Ayamiwin) spoken in Mistissini, Oujé-Bougoumou, Waswanipi, and Nemaska; the Southern Coastal dialect (Iyiyiw-Ayamiwin) spoken in Nemaska, Waskaganish, and Eastmain; the Northern Coastal Dialects (Iyiyiw-Ayimiwin), one spoken in Wemindji and Chisasibi and the other spoken in Whapmagoostui. The dialects are mutually intelligible, though difficulty arises as the distance between communities increases.

East Cree is not considered an endangered language thanks to the large population of younger people who speak it (Mela S.; Mali A. 2009). There are estimated to be more than 18,000 first-language speakers.

Eeyou Istcheeis a territory equivalent to a regional county municipality (TE) of Quebec that is represented by the Grand Council of the Crees. On July 24, 2012, the Quebec government signed an accord with the Cree Nation that resulted in the abolition of the neighbouring municipality of Baie-James and the creation of the new Eeyou Istchee James Bay Regional Government, providing for the residents of neighbouring Jamésie TE and Eeyou Istchee to jointly govern the territory formerly governed by the municipality of Baie-James.

The total land area of Eeyou Istchee is 5,271 km (2,035 sq mi), though the Grand Council of the Crees sees Eeyou Istchee as a much larger contiguous traditional territory and homeland of 450,000 square kilometres (170,000 sq mi). The total population of the area was 14,131 in 2006, according to the 2006 Canadian Census, and the largest municipality is the Cree village municipality of Chisasibi on the south bank of La Grande River near the northeast shore of James Bay.

Whapmagoostui (Cree: ᐙᐱᒫᑯᔥᑐᐃ/Wâpimâkuštui, "place of the beluga") is the northernmost Cree village in Quebec, Canada, located at the mouth of the Great Whale River (French: Grande Rivière de la Baleine) on the coast of Hudson Bay in Nunavik. About 906 Cree with about 650 Inuit, living in the neighbouring village of Kuujjuarapik. The community is accessible only by air (Kuujjuarapik Airport) and, in late summer, by boat. Whapmagoostui is about 250 km (160 mi) north of the nearest Cree village, Chisasibi.

Although the permanent cohabitation of Inuit and Cree at the mouth of the Great Whale River goes back only 1950, the two nations were rubbing shoulders in the area for a very long time, with the Inuit close to the coast and the Cree more in the interior.