sentences:  Mount Cook Line Skifields developed and operated the Queenstown ski areas of Coronet Peak and The Remarkables, now owned by NZSki Ltd.The company developed ski plane conversions of Auster aircraft in its own workshops at Fairlie, in South Canterbury.Now independently owned, Mount Cook Ski Planes operates Cessna 185s and Pilatus Porters, and is the only company to land scenic flights on the Tasman Glacier to this day.