MAMMOTH HOT SPRINGS located northwest of Yellowstone Park, the largest carbonate sedimentary hot spring in the world. The hot springs that keep pouring out make the landscape still changing. Yellowstone Park Authority headquarters is also here, with Albright Visitor Service Center open all year round. Looking at the Mammoth Hot Springs in the distance, it seems that the mountain is wrapped in snow, and only when I approached, I found that this is the perfect combination of Pamukkale and Huanglong. The original hot springs flowed down from the hillside, breeding a large number of bacteria, becoming a colorful ladder, but after a crustal movement in 2002, most hot springs stopped moving, resulting in a large number of microbes dying, so that the mammoth hot springs lost color. Now can not see the previous color, if it is really to be compared with Huanglong or Pamukkale, there is still a gap! The dead bacteria also become a gray powder, residue on the dry big steps. Palette Spring is the most beautiful in the entire scenic spot, because it is alive, there is water flowing, especially white. We also saw flocks of deer nearby! Elk and Moose are stupid and unclear, so let's call them all "deer" for the time being! Ha ha. . . It is said that because the grass planted around here is the favorite of deer, it attracts many deer to come here. Such close contact with wild deer, the children are so happy! Yellowstone Park is really a paradise where "nature dominates everything"! Along the way, we met a lot of wildlife, no cages, no barbed wire. The animals here don't hide from people, and people don't hurt them, just watch them quietly. Humans and animals coexist peacefully, interdependent with each other, deeply feel all the beauty given by nature!