The Hunger

Pros

• Alma Katsu might be a good author for you. She has a book about the Donner Party (The Hunger)
• The Hunger (Alma Katsu) — Not Alaska but frontier/wilderness horror that fits the vibe.
• Highly recommend her historical horror fiction—The Fervor and The Hunger.
• Came here to say The Hunger as well! Highly recommend.
• Alma katsu has done some good historical horror too - the fervor and the hunger being two.

Cons

• The Hunger has Native American skin walker elements but will focus mainly on a fictional retelling of the Donner Party - good if you're ok for North American or historical perspective.
• Also Dead Mountain, The Hunger was ok.
• I know The Hunger is often recommended, but to be honest I thought it was just ok.