Blue Mountain is Ontario's Largest Mountain Resort. In the heart of the Georgian Triangle, nestled between the shores of Georgian Bay and the heights of the Niagara Escarpment, sits Ontario’s premiere four-season playground, Blue Mountain Resort. Known for years as the province’s top ski and snowboard destination, Blue Mountain features a vertical of 720 feet, or 220 metres, with 34 trails ranging from beginner slopes to double black diamond steeps.