National Geographic Travelさんのインスタグラム写真 - (National Geographic TravelInstagram)「Photo by @Sofia_Jaramillo5 / Hot water trickles down Mammoth Hot Springs in Yellowstone National Park. The area consists of about a hundred hot springs that are scattered on a hillside with stepped travertine terraces. Travertine is a form of limestone deposited by mineral springs. This is one of my favorite places to explore in the park because of the incredible views of the brightly colored pools. #yellowstone #findyourpark #nationalparks」10月19日 19時38分