Avalanche (1999) on Netflix

Plot summary

Neal Meekin is a helicopter pilot in the frozen North, working with a husband and his wife to tag foxes for the Environmental Protection Agency. An avalanche hits the group. The husband dies, and only Neal's perseverance brings the wife, the environmentalist Dr. Lia Freeman, out alive. Two years later, Lia takes on a corporation that plans to run an oil pipeline over the tundra above Juneau. She is certain that the pipeline will bring an avalanche down on the town, and the company's executives refuse to listen. Lia recruits Neal to aid her, and their efforts come to nothing.