The expedition of Alexander MacKenzie went past the mouth of the Nechako in 1793, curiously without observing it. The first European to ascend the Nechako was James McDougall, a member of Simon Fraser's expedition, in 1806.
Nechako Reservoir
The Nechako is one of the main tributaries of the Fraser River, although half[5] of its flow was diverted through the Coast Mountains to the Kemano generating station at sea level on the Gardner Canal, 858 metres (2,815 ft) below the reservoir's intakes, which supplies power to the aluminum smelter at nearby Kitimat. The main reservoir of the Nechako power diversion is called the Nechako Reservoir or Ootsa Lake Reservoir, but there are many subnames for different parts of the lake because its conversion into a reservoir involved the amalgamation of chains of lakes, the largest of which were Eutsuk Lake and Natalkuz Lake, which form the south arm of the reservoir. The reservoir's alternate name comes from Ootsa Lake, now merged into the north arm of the reservoir but originally flowing into the Oosta River, a tributary of the Nechako. Other lakes also merged into the north arm are Whitesail Lake and Tahtsa Lake, with the correspondingly-named rivers connecting them now flooded and renamed Whitesail Reach and Tahtsa Reach. The Quanchus Range is located between the two arms of the reservoir.
The damming of the Nechako in 1952 and the consequent massive reduction in flow has been the source of considerable political controversy. The Cheslatta Carrier Nation, a subgroup of the Dakelh or Carrier people, were flooded out by the creation of the reservoir and forced to abandon their homes with only two weeks' warning. The increase in water temperature caused by the reduction in flow has been an ongoing problem for the salmon run on the Fraser and Stuart Rivers as well as the Nechako. Populations of White Sturgeon may have also been affected as studies show an unnatural decline in late-juvenile/early adult populations of the species.
^ ab"Archived Hydrometric Data Search". Water Survey of Canada. Archived from the original on 24 December 2010. Retrieved 4 August 2013. Search for Station 08JC002 Nechako River at Isle Pierre
^T D French, P A Chambers. "Reducing flows in the Nechako River". Canadian Journal of Fisheries and Aquatic Sciences. doi:10.1139/f97-133. {{cite journal}}: Cite journal requires |journal= (help)
Further reading
Christensen, Bev (1995) Too Good to be True. Vancouver: Talonbooks. (A history of the Kemano project, which dammed the Nechako.)
Giesbrecht, Jean Clark (1994) Heritage Lost: A People's History of the Ootsa Lake Region 1905-1955. Likely, BC: Quesnel Lake Publishing. (Contains an account of the flooding caused by the construction of the Kemano Project.)