The Dease Plateau is a sub-plateau of the larger

Yukon Plateau The Yukon Plateau is a plateau (also defined as a plain) located in the Yukon Territory, comprising much of the central and southern Yukon Territory and the far northern part of British Columbia, Canada between Tagish Lake (W) and the Cassiar Moun ...

, and is located in far northern

British Columbia British Columbia is the westernmost Provinces and territories of Canada, province of Canada. Situated in the Pacific Northwest between the Pacific Ocean and the Rocky Mountains, the province has a diverse geography, with rugged landscapes that ...

, Canada, northwest from the Deadwood River to and beyond the

Yukon Yukon () is a Provinces and territories of Canada, territory of Canada, bordering British Columbia to the south, the Northwest Territories to the east, the Beaufort Sea to the north, and the U.S. state of Alaska to the west. It is Canada’s we ...

-British Columbia boundary. The plateau is named in association with

Dease Lake Dease Lake is a small community in the Cassiar Country of the Northern Interior of British Columbia, Canada. It is 230 km south of the Yukon border on Stewart–Cassiar Highway (Highway 37) at the south end of the lake of the same na ...

and the

Dease River Dease may refer to: * Dease Strait, a strait in Nunavut, Canada * Dease Lake (British Columbia), a lake in BC, Canada ** Dease Lake, a town in BC, Canada *** Dease Lake Airport (CYDL), an airport in BC, Canada *** Dease Lake Highway, a highway in ...

. Very mountainous in some of its vast area, it is in some classification systems it is included as a subarea of the

Cassiar Mountains The Cassiar Mountains () 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 Mountain ...

.''Landforms of British Columbia'', S. Holland, publ. British Columbia Govt., 1976

Subranges

* Horseranch Range

References

Plateaus of British Columbia Cassiar Mountains Liard Country {{BritishColumbiaInterior-geo-stub