Ghostkeeper

Ghostkeeper is a 1981 Canadian supernatural slasher film directed by James Makichuk, and starring Riva Spier, Georgie Collins, and Murray Ord. Its plot centers on a trio of snowmobilers in the Canadian Rockies who become stranded at an abandoned hotel where the elderly female innkeeper is hiding an evil entity within the building. The film is inspired by the Windigo legend of North America.

Synopsis from Wikipedia, CC BY-SA 4.0. Everything below written here.