Winter ascent of Mount Assiniboine. LAS of lead climber going up snow-covered couloir (0:44). MS side view trekking up snowy slope in strong winds (1:12). Scenic WS of landscape below seen from halfway up as sun comes out over side of mountain, climbers walk into view from left, various shots of them making theirs way up snowy slope (2:47). CUs and CSs of ice axe sinking into deep snow and spiked boots stepping on snow as they climb up slope (1:29). HAMS of them climbing up steep slope with mountain landscape below (0:44). MS of blowing snow drifting down steep slope (0:20).