Sun Valley, Idaho ( KMVT-TV / KTWT-TV ) We now know the cause of the fire that happened at the Sun Valley Ski Resort over the weekend.
It happened at the top of the Flying Squirrel Lift and destroyed the top terminal.
Ketchum Fire Department investigators determined snow-making compressor oil cooler malfunctioned, causing the release of a large amount of oil, fueling the flames.
A communications building was also destroyed.
Cell phone service in the Warm Springs area and north of Ketchum was impacted as a result.