Great Canyon is the official name of a stretch of the Homathko River

Homathko River

The Homathko River is one of the major rivers of the southern Coast Mountains of British Columbia, and one of the few rivers that penetrates the range from the Chilcotin Plateau to the coastal inlets, entering the sea at the head of Bute Inlet adjacent to the mouth of the Southgate River, just to...

 as it pierces the heart of the Pacific Ranges

Pacific Ranges

The Pacific Ranges are the southernmost subdivision of the Coast Mountains portion of the Pacific Cordillera. Located entirely within British Columbia, Canada, they run northwest from the lower stretches of the Fraser River to Bella Coola, north of which are the Kitimat Ranges.The Pacific Ranges...

 of the Coast Mountains

Coast Mountains

The Coast Mountains are a major mountain range, in the Pacific Coast Ranges, of western North America, extending from southwestern Yukon through the Alaska Panhandle and virtually all of the Coast of British Columbia. They are so-named because of their proximity to the sea coast, and are often...

 between the Chilcotin District

Chilcotin District

The Chilcotin District of British Columbia is usually known simply as "the Chilcotin", and also in speech commonly as "the Chilcotin Country" or simply Chilcotin. It is a plateau and mountain region in British Columbia on the inland lea of the Coast Mountains on the west side of the Fraser River....

 of the British Columbia Interior

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...

 and the Central Coast

British Columbia Coast

The British Columbia Coast or BC Coast is Canada's western continental coastline on the Pacific Ocean. The usage is synonymous with the term West Coast of Canada....

 region at Bute Inlet

Bute Inlet

Bute Inlet is one of the principal inlets of the British Columbia Coast. It is 80 km long from its head at the mouths of the Homathko and Southgate Rivers to the continental headlands at its mouth, where it is nearly blocked by Stuart Island, and it averages about 4 km in width...

. Also known unofficially as the Grand Canyon of the Homathko, it is located above the confluence of Mosley Creek. The canyon is the largest on the Homathko and lies on the west side of the Waddington Range

Waddington Range

The Waddington Range is a subrange of the Pacific Ranges of the Coast Mountains in southwestern British Columbia, Canada. It is only about 4000 km² in area, relatively small in area within the expanse of the range, but it is the highest area of the Pacific Ranges and of the Coast Mountains, being...

 massif containing Mount Waddington

Mount Waddington

Mount Waddington, once known as Mystery Mountain, is the highest peak in the Coast Mountains of British Columbia, Canada. Although Mount Fairweather and Mount Quincy Adams, which straddle the US border between Alaska and British Columbia are taller, Mount Waddington is the highest peak that lies...

, the range's highest, and like other parts of the Homathko has been proposed as the site of dams in a region-wide hydroelectric development involving the Homathko, Southgate

Southgate River

The Southgate River is a river in the Pacific Ranges of the Coast Mountains in British Columbia, Canada, entering the head of Bute Inlet, on that province's South Coast, just east of the mouth of the Homathko River at Waddington Harbour. The lower reaches of the river's course are flat-bottomed...

, Chilko

Chilko River

The Chilko River is a 75 km waterway in the Chilcotin District of the Central Interior of British Columbia, Canada, connecting Chilko Lake to the Chilcotin River. Its main tributary is the Taseko River....

 and Taseko River

Taseko River

The Taseko River , or Desiqox in the original Chilcotin, is a tributary of British Columbia's Chilko River, a tributary of the Chilcotin River which joins the Fraser near the city of Williams Lake....

s.