Adopted 6 October 1936 on Geological Survey sheet 368A, Smithers.

Source: BC place name cards, or correspondence to/from BC's Chief Geographer or BC Geographical Names Office

This is the location of "Black" triangulation station.

Source: BC place name cards, or correspondence to/from BC's Chief Geographer or BC Geographical Names Office

No conclusive information about the naming of Tachek Mountain, however, it is undoubtedly of Indian derivation. The Indians of the area were the Takulli ("people who go upon the water"), also known as the Carrier, a division of the Northern Athapascan (or Dene) peoples. There were several divisions of the Takulli: one such division was known as the Tatshiautin ("people of the head of the lake") officially known as the "Tatche Band" who live at and around the head of Stuart Lake and on the Tachie River. (Handbook of Indians of Canada, published by the Geographic Board of Canada, 1912). Members of the Tatche Band also lived on Takla, Trembleur and Connolly Lakes, and were sometimes called the "Tatshikotin". In Geological Survey of Canada, Report of Progress 1879-80, p.308 it states that the Tatshikotin also resided at Stony Creek and around Nechako River in the vicinty of Nulki Lake. Another division of the Takulli, the Nulaautin, had a village called Nulkreh on Nulki Lake.

Source: Provincial Archives of BC "Place Names File" compiled 1945-1950 by A.G. Harvey from various sources, with subsequent additions