Tags: Mountain 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.