There is literally every color of the rainbow in this image lol. The wedge at the middle of the horizon is the silhouette of the Big Horn Mountains where the sun is setting directly behind. There are only a few weeks a year I can take these but historically the weather window has been closed for most of the time. I consider these hard to get with the sun directly over the peaks 130 miles away. I have to move many miles north now to keep getting this chance as the sun moves rapidly down the range more progressively each sunset in the years timeline.
Location: Bliss DInosaur Ranch, Wyoming/Montana borderlands.