Powder Mountain Icefield, Glacial formation in British Columbia, Canada

Powder Mountain Icefield is a glacial field in the Pacific Ranges of southwestern British Columbia, about 20 kilometres west of Whistler and 90 kilometres north of Vancouver. It lies between the Squamish River valley to the west and the Callaghan Valley to the east. The icefield is studded with volcanic formations, including the active Mount Cayley, Powder Mountain, Brandywine Mountain and Mount Fee.

In 1985 Powder Mountain Resorts won a proposal call and gained approval in principle for a project with a basetown at Callaghan Lake. In 1987 Forests and Lands Minister Jack Kempf was told by Premier Bill Vander Zalm to cease and desist in favour of Callaghan Resorts Inc. The promoters' breach-of-contract suit was dismissed by the Supreme Court of British Columbia in 1999 and upheld on appeal in 2000.

The eastern side of the icefield borders Callaghan Valley, which later became the location for Nordic events during the 2010 Winter Olympics.

The site sits roughly 20 kilometers west of Whistler and about 90 kilometers north of Vancouver in a mountainous region. Access can be restricted during certain seasons due to snow and weather conditions that make the terrain challenging to navigate.

The formation contains volcanic rock features like Ember Ridge and Slag Hill composed of stone with up to 70 percent glass content. These unusual formations were created through subglacial volcanic activity occurring beneath the ice.