A skier descends the hill at Blue Mountain Resort during late-season conditions. (Image supplied - Blue Mountain Resort) A skier descends the hill at Blue Mountain Resort during late-season conditions. (Image supplied - Blue Mountain Resort) A bountiful amount of snow this winter made for an excellent ski season, but all good things must come to an end.Horseshoe Valley Resort will end its ski season, weather pending, on Sunday, Apr. 5, while Mount St. Louis Moonstone will wind down its operation