 Complete the following phrase:  The Mount Meager massif remains a major volcanic hazard, capable of producing highly explosive eruptions. A full-scale eruption would threaten many populated areas throughout southern British Columbia and Alberta. Pemberton, a community downstream from the massif, faces high risk. If the volcano were to erupt violently, it would disrupt the Lillooet River fishery as well as nearby mining and logging activity. In addition, the Mount Meager massif lies in the immediate proximity of a major air traffic route. Volcanic ash reduces visibility and can cause jet engine failure, as well as damage to flight control systems. Even a minor eruption from the volcano could cause massive devastation by rapidly melting glacial ice to produce large debris flows. An example of such an event is the 1985 