The Great Salt Lake, the world's second-largest saltwater lake and North America's largest inland salt lake, is located in western Utah, USA. It is bordered by the Rocky Mountains to the east and desert to the west, and consists of 10 islands. It is also a wildlife sanctuary, attracting millions of migratory birds annually. The lake's salinity is as high as 25%, second only to the Dead Sea, and only a few types of algae that can tolerate extremely high salinity can survive in it.

Established on March 1, 1872, it is renowned for its rich wildlife and geothermal resources. Named after the source of the Yellowstone River, the park boasts hundreds of recorded animal species. Native Americans have inhabited the Yellowstone area for at least 11,000 years. Geothermal wonders are its hallmark, and the park's natural landscape is divided into five main areas: the Mammoth Area, the Roosevelt Area, the Canyon Area, the Geyser Area, and the Lake Area, each with its own unique characteristics.

Also known as the Grand Prismatic Spring or the Eye of the Earth, it is located at coordinates 44.524569, -110.837975 in Yellowstone National Park , USA . With a diameter of approximately 100 meters, it is the largest hot spring in the United States and the third largest in the world. It is about 75 to 91 meters wide and 49 meters deep, with a water temperature reaching 85°C, and approximately 2000 liters of 71-degree Celsius water gushing out every minute. It was first discovered by explorers in 1839. 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 a golden orange-red. In the height of summer, the chlorophyll decreases, so the lake displays a vibrant orange, red, or yellow hue. But in the depths of winter, due to lack of sunlight, the water turns a deep, dark green.

Also known as the "Artist's Paint Bucket," it gets its name from its colorful and varied geothermal landscapes and is one of the most distinctive geothermal areas in Yellowstone National Park. It features four typical geothermal phenomena: hot springs, mud pots, fumaroles, and small geysers. Walking along the trails , visitors can get up close to the boiling mud pools, the rising steam from the fumaroles, and the vibrant colors formed by mineral deposits. The entire area resembles nature's palette and is a representative attraction for experiencing Yellowstone's geothermal wonders.

Old Faithful Geyser is a geyser located in Yellowstone National Park, USA , named for its consistent and regular eruptions. It was named during the Washburn-Lanford-Dorn Expedition in 1870, becoming the first named geyser in Yellowstone National Park. Currently, it erupts approximately every 90 minutes, each eruption lasting 4-5 minutes, with water columns reaching over 40 meters high, creating a spectacular sight, and it never stops. The geyser and the adjacent Old Faithful Inn are listed as part of the Old Faithful Historic District.

Morning Glory Pool, located at the end of the Upper Geyser Basin in Yellowstone National Park, is named for the vibrant morning glory-like colors that appear around its edges. It is one of Yellowstone's most iconic hot springs. The water's color gradually transitions from deep blue to yellow and orange, creating distinct layers under sunlight, making it a highly scenic attraction. Powered by a continuously heating underground spring , Morning Glory Pool boasts extremely high water temperatures. Its unique color variations, combined with the surrounding steaming landscape, make it a key scenic spot for visitors exploring the Upper Geyser Basin on foot.