Tatlatui Lake is a

lake A lake is an area filled with water, localized in a basin, surrounded by land, and distinct from any river or other outlet that serves to feed or drain the lake. Lakes lie on land and are not part of the ocean, although, like the much large ...

in the

Tatlatui 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 th ...

of the

Omineca Mountains The Omineca Mountains, also known as "the Ominecas", are a group of remote mountain ranges in the Boreal Cordillera of north-central British Columbia, Canada. They are bounded by the Finlay River on the north, the Rocky Mountain Trench (here fil ...

of the

Northern Interior of British Columbia Northern may refer to the following: Geography * North, a point in direction * Northern Europe, the northern part or region of Europe * Northern Highland, a region of Wisconsin, United States * Northern Province, Sri Lanka * Northern Range, a ra ...

Canada Canada is a country in North America. Its ten provinces and three territories extend from the Atlantic Ocean to the Pacific Ocean and northward into the Arctic Ocean, covering over , making it the world's second-largest country by tot ...

. It is the source of the Firesteel River, the uppermost left tributary of the

Finlay River The Finlay River is a 402 km long river in north-central British Columbia flowing north and thence south from Thutade Lake in the Omineca Mountains to Williston Lake, the impounded waters of the Peace River formed by the completion of the W.A. ...

, which begins just southeast at

Thutade Lake Thutade Lake is located in the Omineca Mountains of the British Columbia Interior, Northern Interior of British Columbia, Canada. About in length, and no more than about wide, the lake is primarily significant as the ultimate source of the Mack ...

, which is considered the ultimate source of the Mackenzie River. The lake and adjoining summits are part of

Tatlatui Provincial Park Tatlatui Provincial Park is a provincial park in British Columbia, Canada, located at the southern end of the Spatsizi Plateau and around the headwaters of the Firesteel River, part of the Finlay-Peace River basin and therefore in the Arctic drai ...

References

Lakes of British Columbia Omineca Mountains Cassiar Land District {{BritishColumbiaInterior-geo-stub