It was almost too dark to take a photograph, and the biting cold was another dissuading factor, as I passed here on my way back. A thin layer of frost was reflecting the dark blue of the sky, producing the unusual color. The temperature was falling drastically as I was setting the camera, and when I triggered the Pentax 67, it's battery had died. I had to warm it up in my pocket for five minutes before I could take the shot, just in time.