The Tanzilla Plateau is a plateau

Plateau

In geology and earth science, a plateau , also called a high plain or tableland, is an area of highland, usually consisting of relatively flat terrain. A highly eroded plateau is called a dissected plateau...

 in the Stikine Country

Stikine Country

The Stikine Country, also referred to as the Stikine District or simply "the Stikine" , is one of the historical geographic regions of the Canadian province of British Columbia, located inland from the central Alaska Panhandle and comprising the basin of the Stikine River and its tributaries...

 of the Northern Interior of British Columbia

British Columbia Interior

The British Columbia Interior or BC Interior or Interior of British Columbia, usually referred to only as the Interior, is one of the three main regions of the Canadian province of British Columbia, the other two being the Lower Mainland, which comprises the overlapping areas of Greater Vancouver...

, Canada

Canada

Canada is a North American country consisting of ten provinces and three territories. Located in the northern part of the continent, it extends from the Atlantic Ocean in the east to the Pacific Ocean in the west, and northward into the Arctic Ocean...

. It is a sub-plateau of the Stikine Plateau

Stikine Plateau

The Stikine Plateau is a plateau in northern British Columbia, Canada. It lies between the Boundary Ranges of the Coast Mountains on the west and southwest and the Cassiar Mountains along its northeast, and between the Skeena Mountains on its south and southeast and the Jennings and Nakina Rivers...

 and is located east of the Tuya River

Tuya River

The Tuya River is a major tributary of the Stikine River in far northwestern British Columbia, Canada. Rising at Tuya Lake, which is on the south side of Tuya Mountains Provincial Park, it flows south to meet the Stikine River where that river bisects the Tahltan Highland. Its main tributary is...

, north of the Stikine River

Stikine River

The Stikine River is a river, historically also the Stickeen River, approximately 610 km long, in northwestern British Columbia in Canada and southeastern Alaska in the United States...

 and surrounding Dease Lake; its eastern extremity verges on the Stikine Ranges

Stikine Ranges

The Stikine Ranges are a mountain range in northwestern British Columbia, Canada. They are the northernmost subdivision of the Cassiar Mountains and among the least explored and most undeveloped parts of the province.-Sub-ranges:*Beady Range...

 of the Cassiar Mountains

Cassiar Mountains

The Cassiar Mountains are the most northerly group of the Northern Interior Mountains in the Canadian province of British Columbia and the Yukon Territory. They lie north and west of the Omineca Mountains, west of the northernmost Rockies and the Rocky Mountain Trench, north of the Hazelton...

 at Dark Mountain

Dark Mountain

Dark Mountain, formerly also known as Black Mountain, is a mountain in the Tanzilla Plateau of the Northern Interior of British Columbia, Canada, located northeast of the settlement of Dease Lake, near Cry Lake.-See also:...

 and Pyramid Mountain

Pyramid Mountain

Pyramid Mountain can refer to:*Pyramid Mountain in Jasper National Park, Canada*Pyramid Mountain in Wells Gray-Clearwater Volcanic Field of British Columbia, Canada*One of six other mountains in British ColumbiaAlso:...

. The Spatsizi Plateau

Spatsizi Plateau

The Spatsizi Plateau is a plateau in the upper basin of the Stikine River in north-central British Columbia, Canada. Most of the plateau, which is a sub-plateau of the Stikine Plateau, is enshrined in either Spatsizi Plateau Wilderness Provincial Park or Spatsizi Headwaters Provincial Park...

 is to the southeast, the Klastline Plateau

Klastline Plateau

The Klastline Plateau is a plateau in the Stikine Country of the Northern Interior of British Columbia, Canada. A subplateau of the Stikine Plateau, it is located between the Stikine River , the upper Iskut River , Mess Creek and the Klappan River...

 to the south, the Tahltan Highland

Tahltan Highland

The Tahltan Highland is an upland area of plateau and relatively lower mountain ranges in British Columbia, Canada, lying east of the Boundary Ranges and south of the Inklin River...

 to the west and southwest, and the Kawdy Plateau

Kawdy Plateau

The Kawdy Plateau is a plateau in northern British Columbia, Canada, located between the Nahlin and Tuya Rivers. It includes the granitic Atsutla Range and Nazcha Hills and the volcanic Kawdy Mountain.-References:* in the Canadian Mountain Encyclopedia....

 to the west and northwest. All are also sub-plateaus of the Stikine Plateau

Stikine Plateau

The Stikine Plateau is a plateau in northern British Columbia, Canada. It lies between the Boundary Ranges of the Coast Mountains on the west and southwest and the Cassiar Mountains along its northeast, and between the Skeena Mountains on its south and southeast and the Jennings and Nakina Rivers...

.