Mammoth Hot Springs is one of the largest thermal features in Yellowstone National Park. The limestone beneath the hot springs is dissolved in the hot water and brought to the surface where it creates white terraces. Heat-loving microorganisms add color to the steaming water that flows over the terraces or collects in pools within them. The site consists of Upper and Lower terraces, and activity within any are can change from day to day. These photos are from several locations along the Upper Terrace. Yellowstone is located in the Rocky Mountains of the western USA.

A crusty white pool, dead tree trunks, and steaming terraces of Canary Spring with a barren mountainside at Mammoth Hot Springs in Yellowstone National Park

AmericaAmerican westCanary SpringMammoth Hot SpringsMontanaNorth AmericaUSAUnited StatesUpper TerracesWyomingYellowstonebarrencalcium carbonatecrystallizeddeadeeriegeologygeothermalhothot springmineralmineralsnational parknaturalnatureno oneno peoplenobodypoolsteamsteamingsurrealterracethermalthermal featuretravertinetreesvolcanicwestwilderness