sentences:  The latest volcanic activity in the Powder Mountain Icefield has occurred in the past 10,000 years.The icefield was one of several locations in the southern Coast Mountains that attracted ski resort development interest as a result of the success of the nearby ski resort town at Whistler, British Columbia.A proposal call in 1985 was won by Powder Mountain Resorts, who won approval in principle from the provincial government for its project design, which included a small basetown at Callaghan Lake.