Steemit user posted a photo earlier today of a beautiful blue pool at Yellowstone. I recognized it right away because I took a photo of the exact same one!! I had to share so we could compare them.
I should point out that there are tons of pools and geysers in Yellowstone National Park. They come in all different colors and shapes. This one, called Sapphire Pool, is easily recognizable by it's stunning blue color and that shelf that looks like a seat in a hot tub! You wouldn't want to sit in this tub, though. The pools can be extremely hot and are full of salts that can burn (and sometimes kill) anyone who is tempted to get in.
This photo was taken on a chilly day in May of 2017.