Geologic Treasures

We finished our day with a stop at the Lower Terrace of Mammoth Hot Springs. The spring's waters originate from Norris Geyser Basin. Traveling along an underground fault line through limestone, the waters pick up calcium carbonate, which is then deposited in Mammoth, becoming Travertine. Algae living in the waters color the area with beautiful hues of brown, orange, red, and green. In this area of the springs, we observed Liberty Cap, Devil's Thumb and Palette Spring.En savoir plus