Both of the following photos are of the sun setting over the Fountain Geyser in Yellowstone National Park.
This one was taken just as the sun was dipping behind the horizon. I was trying to get the sunburst but quite honestly didn't expect to get half of one in the sky and the full reflection in the pool. The largest steam is coming from the mouth of the geyser. Other steam vents can be seen in the background.
This one was taken later as the sky put on a spectacular color display. It is only one of many that I took that show the colors going from yellows to deep reds. The blues continued to be mixed into the clouds for most of the sunset.