Explore Yellowstone National Park with Private Guides and a Tailor-Made Journey

Also known as the Seven Color Pool, it is the largest hot spring in the United States and the third largest in the world. It is 75-91 meters wide and 49 meters deep, and it gushes out about 2,000 liters of 71-degree hot water every minute. The amazing thing about the Grand Prismatic Spring is that the color of the lake changes with the seasons. In spring, the lake changes from emerald green to golden orange-red, which is due to the algae and pigment-containing bacteria and other microorganisms living in the mineral-rich water. In midsummer, the chlorophyll content is relatively low, so the lake water appears brilliant orange, red or yellow. But in the cold winter, due to the lack of light, these microorganisms will produce more chlorophyll to suppress the color of carotenoids, so the water will appear deep dark green.

Old Faithful geyser is named for its consistent and regular eruption. Currently, it erupts approximately every 60 to 110 minutes, and each eruption lasts four to five minutes. The water column is more than 40 meters high, which is spectacular and never stops. The Old Faithful Visitor Center will display the eruption schedule in advance, so you can check the eruption time in advance before visiting with confidence.

The West Thumb Geyser Basin, located on the edge of Yellowstone Lake, was formed 150,000 years ago by the collapse of the earth's crust. The combination of hot springs and lake water has created a wonderful misty landscape: the misty area is the steam of hot springs, and the green waves are the water of Yellowstone Lake, which complements the blue sky and white clouds in the background, forming a landscape different from other hot spring areas in Yellowstone. This area is equivalent to the bay of Yellowstone Lake, where many geysers gather. The colors of the water outlets vary, some are transparent green, and some are dark black like cement. Many water outlets present a beautiful fantasy.

The scenery here is particularly spectacular. The canyon is more than 300 feet deep. The canyon walls are mainly yellow, mixed with black, red and pink, and clusters of green pine trees. These colors are mixed but not chaotic, looking like a peacock's tail, and also like the pointillism of a romantic painter who applied several layers of color in the same place.

The Upper Falls is located 400 meters upstream of the larger Yellowstone Falls. The waterfall falls vertically along the volcanic cliff with a drop of 33 meters. The originally uneven volcanic rocks below the waterfall have been eroded by the waterfall for hundreds of years and have become very smooth.

Norris Geyser Basin, named after an early Yellowstone Superintendent, may be the hottest geyser basin in Yellowstone. The stark, barren landscape of Porcelain Basin is the result of the acidic environment. Due to the hostile condition plants, algae and bacteria have difficulty in establishing themselves. Instead, the basin derives its colors from mineral oxides, in spectrums of pink, red, orange (iron oxides) and yellow (sulfur and iron sulfates). The largest geyser in the world is located here. Steamboat Geyser has long periods of dormancy, but when it does erupt it sends jets of water nearly 380 feet high in a spectacular display.