The Cassiar Mountains ( French : Chaîne des Cassiars ) are the most northerly group of the Northern Interior Mountains in the Canadian province of British Columbia and also extend slightly into the southernmost Yukon Territory . They lie north and west of the Omineca Mountains , west of the northernmost Rockies and the Rocky Mountain Trench , north of the Hazelton Mountains and east of the Boundary Ranges . They form a section of the Continental Divide , that, in this region, separates water drainage between the Arctic and Pacific Oceans. Physiographically, they are a section of the larger Yukon-Tanana Uplands province, which in turn are part of the larger Intermontane Plateaus physiographic division.
2-744: The Kechika Ranges are a subrange of the Cassiar Mountains subdivision of the Interior Mountains in far northern British Columbia , Canada , lying west of the Rocky Mountain Trench between the Rainbow (S) and Deadwood Rivers (N). 58°45′00″N 127°30′00″W / 58.75000°N 127.50000°W / 58.75000; -127.50000 This article related to a mountain, mountain range, or peak in British Columbia , Canada
4-594: Is a stub . You can help Misplaced Pages by expanding it . This article about a location in the Interior of British Columbia , Canada is a stub . You can help Misplaced Pages by expanding it . Cassiar Mountains In the western Cassiar Mountains lie the remnants of a prehistoric shield volcano called the Maitland Volcano which formed between 5 and 4 million years ago during the Pliocene period. The highest mountain in
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