Aerial view of valley in various shades of green accented by a white line that snakes around and includes a trestle bridge w/train crossing over it. These details are very small but distinct. Text below "The Loop Near Georgetown, Colo." We've seen with backpaper text advertising "The Loop Trip" w/information available from a Denver agent. This example has standard W&H backpaper with no added text. Exc., displays Mint.