Tags: Mountain Range.
The Tatlatui Range is a large and very alpine mountain range on the east flank of the upper Skeena River in northern British Columbia Canada. It has an area of 2307 km2 and is a subrange of the Omineca Mountains which in turn form part of the Interior Mountains. The range features several lakes the largest of which Thutade Lake is at the head of the Finlay River and is considered the ultimate source of the Mackenzie River.