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Beaver Brown Waters of Rupert Bay

The Cree word pahtaaunaakun, meaning “color of singed beaver,” aptly describes the brown waters draining into Hannah and Rupert Bays in Canada. This coloration is due to colored dissolved organic matter (CDOM) leaching from decaying vegetation into the rivers.

Rivers like the Moose, Nottaway, and Harricanaw carry CDOM, which absorbs blue and ultraviolet light, staining the water brown as it flows into James Bay. Mudflats along the shore are formed by shallow bathymetry and sediment deposition, further mixed by tides and currents.

Differences in moisture and vegetation create varied green patterns onshore, with denser forests along stream channels and sparser tree cover in peat bogs.

Beavers have a significant historical and mythological role in the region. The Cree people traditionally hunted them, and European traders arrived in the 1660s, leading to the fur trade and the establishment of the Hudson's Bay Company.

Cree mythology includes stories about beavers, such as a myth about a giant pursuing a mythical beaver, which is said to have created Stag Rock.

The Hudson's Bay Company, in collaboration with the Cree, established Charlton Island as a managed beaver preserve in the 1830s and again a century later to boost beaver populations.

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