Pekuakamiulnuatsh First Nation or Première Nation des Pekuakamiulnuatsh in French, is a First Nation of Canada.
The Nation is based on its reserve of Mashteuiatsh, in the Saguenay–Lac-Saint-Jean region of Quebec.
The community is 8 km (5.0 mi) north of Roberval, on the western shore of Lac Saint-Jean.
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