Spectrum Range

The Spectrum Range, formerly called the Spectrum Mountains and the Rainbow Mountains, is a subrange of the Tahltan Highland in the Stikine Country of northwestern British Columbia, 20 km west of the Stewart-Cassiar Highway, south of Mount Edziza and north of the Arctic Lake Plateau.

The Spectrum Range falls within Mount Edziza Provincial Park. The range is lightly glaciated, as compared to the other ranges to the west. It is accessible only by foot or via helicopter; there are no roads to the range.

Spectrum Range
Spectrum Range
Satellite photo of the Spectrum Range
Highest point
PeakKitsu Peak
Elevation2,414 m (7,920 ft)
Coordinates57°26′0″N 130°41′0″W / 57.43333°N 130.68333°W / 57.43333; -130.68333
Geography
Spectrum Range is located in British Columbia
Spectrum Range
Spectrum Range
CountryCanada
ProvinceBritish Columbia
Parent rangeTahltan Highland (southwestern Stikine Plateau)
Geology
OrogenyVolcanism
Age of rockPliocene-to-Holocene
Type of rockShield volcano

Geology

Like the Rainbow and ItchaIlgachuz Ranges at the western end of the Chilcotin Plateau farther south, the range's name derives from the brilliant colours that are symptomatic from heavy mineralization comprising the material forming the range.

The Spectrum Range is one of four large stratovolcanoes that make up the Mount Edziza volcanic complex. A predominantly lava dome overlies a basal shield volcano. The range is Pliocene in age and on its southwestern flank contains Pleistocene subglacial and subaerial cones and its northwest and southwest sides contain Holocene pyroclastic cones and lava flows. The youngest feature in the volcanic complex could be The Ash Pit.

Mountains

See also

References

Tags:

Spectrum Range GeologySpectrum Range MountainsSpectrum RangeArctic Lake PlateauBritish ColumbiaMount EdzizaMount Edziza Provincial ParkMountain rangeStewart-Cassiar HighwayStikine CountryTahltan Highland

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