This image was taken at minus 50 degrees near Northway Alaska near Tetlin National Wildlife Refuge.

Tetlin National Wildlife Refuge is a landscape made up of forests, wetlands, tundra, lakes, mountains and glacial rivers bounded by the snowy peaks of the Alaska Range. This upper Tanana River valley has been called the "Tetlin Passage," because it serves as a major migratory route for birds traveling to and from Canada, the lower 48 and both Central and South America.