[1] Volcanoes such as the Slag Hill tuya were formed when magma intruded into and melted a vertical pipe in the overlying Powder Mountain Icefield.The partially molten mass cooled as a large block, with gravity flattening its upper surface, forming its flat-topped, steep-sided subglacial volcanic edifice.In 1987, Forests and Lands Minister Jack Kempf was instructed by then-Premier Bill Vander Zalm to "cease and desist" in favour of Callaghan Resorts Inc., which was backed by then-Attorney-General Les Peterson.A special prosecutor was appointed but the investigation was halted for lack of evidence in 2003, three weeks before Vancouver and Whistler won the bid to host the 2010 Winter Olympics.In 2007, RCMP Commercial Crimes Unit head Kevin deBruyckere confirmed that a review is underway, and which the Hartwicks say is based on new evidence of conflict of interest.