Cassiar Mountains Region (Zus 3) Map Hierarchy: North America / Alaska Yukon / Yukon-Mackenzie Divide / Cassiar Mountains Location: West of the Stewart-Cassiar Highway north of Dease Lake, as far west as Atlin Lake. This area is everything between the Stikine River (S) and the Rancheria and Swift Rivers (N). Area: 51626 sq km Click Here for Mountains |