During a particularly cold winter, the low temperature broke records for longest streak of days under 40 below zero, often dipping under 50 below zero. The Tanana River never stopped flowing, maintaining enough energy to keep it warmer than the air above it. The fog generated during the early morning hours rolled in thick as the sunrise light fought its way through. You can sit on the banks and watch the changing sunrise light dance through the fog and paint the snow while your breath changes colors and freezes in front of you. This is the beauty of a cold Alaska sunrise.