The Ha-Iltzuk Icefield is an icefield in the central 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...

 in British Columbia

British Columbia

British Columbia is the westernmost of Canada's provinces and is known for its natural beauty, as reflected in its Latin motto, Splendor sine occasu . Its name was chosen by Queen Victoria in 1858...

, 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 the largest icefield in the Coast Mountains south of the Alaska Panhandle

Alaska Panhandle

Southeast Alaska, sometimes referred to as the Alaska Panhandle, is the southeastern portion of the U.S. state of Alaska, which lies west of the northern half of the Canadian province of British Columbia. The majority of Southeast Alaska's area is part of the Tongass National Forest, the United...

, with an area of 3610 km² (1,393.8 sq mi). It is located on the west side of the Klinaklini River

Klinaklini River

The Klinaklini River is one of the major rivers of the Pacific Ranges section of the Coast Mountains in British Columbia. It begins in the northern basins of the Pantheon Range to the north of Mount Waddington and briefly heads northeast onto the Chilcotin Plateau before bending around...

 and 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...

. The highest summit in the icefield is Mount Silverthrone

Mount Silverthrone

Mount Silverthrone, officially named Silverthrone Mountain, is a mountain in the Regional District of Mount Waddington, British Columbia, located over northwest of the city of Vancouver and about west of Mount Waddington, British Columbia, Canada...

, which is a mountain on the northeast edge of a circular, 20 km (12.4 mi) wide, deeply dissected caldera

Caldera

A caldera is a cauldron-like volcanic feature usually formed by the collapse of land following a volcanic eruption, such as the one at Yellowstone National Park in the US. They are sometimes confused with volcanic craters...

 complex

Complex volcano

A complex volcano, also called a compound volcano, is a volcano with more than one feature. They form because changes of their eruptive characteristics or the location of multiple vents in an area...

 called the Silverthrone Caldera

Silverthrone Caldera

The Silverthrone Caldera is a potentially active caldera complex in southwestern British Columbia, Canada, located over northwest of the city of Vancouver and about west of Mount Waddington in the Pacific Ranges of the Coast Mountains. The caldera is one of the largest of the few calderas in...

.

The southern half of the icefield is named the Silverthrone Glacier

Silverthrone Glacier

The Silverthrone Glacier is a glacier at the northwest head of Knight Inlet in southwestern British Columbia, Canada.-References:...

 and flows west, joining the Klinaklini Glacier

Klinaklini Glacier

The Klinaklini Glacier is a glacier west of the Klinaklini River and head of Knight Inlet in southwestern British Columbia, Canada.-References:...

 just above that glacier's terminus, where its outflow is short but very large, and joins the Klinaklini River

Klinaklini River

The Klinaklini River is one of the major rivers of the Pacific Ranges section of the Coast Mountains in British Columbia. It begins in the northern basins of the Pantheon Range to the north of Mount Waddington and briefly heads northeast onto the Chilcotin Plateau before bending around...

 within a few kilometres. The Klinaklini Glacier constitutes the northern half of the icefield, and off its northwest edge a glacial tongue produces the head of the Machmell River

Machmell River

The Machmell River, also spelled Machmel River, is a river in the Pacific Ranges of the southern Coast Mountains in British Columbia, Canada. It flows west into Owikeno Lake....

. The name Ha-Iltzuk Icefield does not appear in government gazettes.