西黄石

Grand Prismatic Spring in Yellowstone National Park is the largest hot spring in the United States and the third largest in the world, measuring 90 meters in diameter and up to 50 meters deep. Its vividly colored rings — blue in the center graduating through teal, green, yellow, and orange to a deep red at the edges — are caused by heat-loving bacteria (thermophiles) that form pigmented mats at different temperatures. The spring is best appreciated from an overlook trail that provides the aerial perspective needed to see its full rainbow.

老忠实间歇泉是美国黄石国家公园最著名的自然奇观之一，因其规律喷发的特性而得名。间歇泉大约每90分钟喷发一次，每次喷发持续约1.5至5分钟，水柱高达30至55米，热气腾腾，蔚为壮观。游客中心有预测下次喷发的时间，建议提早到达占据观景位置。园区内还有众多地热池、间歇泉群和火山地貌，建议停留多天以全面游览黄石的自然奇观。

Yellowstone National Park，位于West Yellowstone，是深受游客喜爱的旅游景点，以其独特的魅力与文化价值吸引世界各地的旅行者前来探访。