The Tatlatui Range is a large and very alpine

mountain range A mountain range or hill range is a series of mountains or hills arranged in a line and connected by high ground. A mountain system or mountain belt is a group of mountain ranges with similarity in form, structure, and alignment that have arise ...

on the east flank of the upper

Skeena River The Skeena River is the second-longest river entirely within British Columbia, Canada (after the Fraser River). Since ancient times, the Skeena has been an important transportation artery, particularly for the Tsimshian and the Gitxsan—whose n ...

in northern

British Columbia British Columbia (commonly abbreviated as BC) is the westernmost province of Canada, situated between the Pacific Ocean and the Rocky Mountains. It has a diverse geography, with rugged landscapes that include rocky coastlines, sandy beaches, ...

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 has an area of 2307 km² and is a subrange 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 ...

which in turn form part of the

Interior Mountains The Interior Mountains or Northern Interior Mountains are the semi-official names for an expansive collection of mountain ranges that comprises much of the northern half of the Canadian province of British Columbia and a large area of southern Yu ...

.Tatlatui Range
in the Canadian Mountain Encyclopedia The range features several lakes, the largest of which,

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 ...

, is at the head 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. ...

, and is considered the ultimate source of the Mackenzie River.

Tatlatui Lake Tatlatui Lake is a lake in the Tatlatui Range of the Omineca Mountains of the Northern Interior of British Columbia, Canada. It is the source of the Firesteel River, the uppermost left tributary of the Finlay River, which begins just southeast a ...

, the next largest lake in the range, to the northwest of Thutade Lake, is at the head of the Firesteel River, a tributary of the Finlay. Various summits of the range, which as described separates the

Pacific The Pacific Ocean is the largest and deepest of Earth's five oceanic divisions. It extends from the Arctic Ocean in the north to the Southern Ocean (or, depending on definition, to Antarctica) in the south, and is bounded by the continen ...

and

Arctic The Arctic ( or ) is a polar regions of Earth, polar region located at the northernmost part of Earth. The Arctic consists of the Arctic Ocean, adjacent seas, and parts of Canada (Yukon, Northwest Territories, Nunavut), Danish Realm (Greenla ...

drainages, form part of the

Continental Divide A continental divide is a drainage divide on a continent such that the drainage basin on one side of the divide feeds into one ocean or sea, and the basin on the other side either feeds into a different ocean or sea, or else is endorheic, not ...

. Most of the range and its lakes are in

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 ...

. A number of rivers flow through the Tatlatui Range, including the Mosque River.

References

Omineca Mountains Skeena Country Great Divide of North America {{BritishColumbiaInterior-geo-stub