12 Otherworldly Volcanic Landscapes: From Lava Tubes to Steaming Calderas
2. Grand Prismatic Spring & Old Faithful, Yellowstone NP, USA: Caldera's Steaming Spectacles
Yellowstone, a colossal supervolcano caldera, pulsates with geothermal wonders. Marvel at the Grand Prismatic Spring, its vast expanse radiating vivid blues, greens, oranges, and yellows – colors painted by thermophilic bacteria thriving in the scalding water. Nearby, Old Faithful geyser reliably erupts, shooting superheated water skyward, a testament to the immense pressure cooker below. These features offer a dazzling, almost psychedelic display of the raw geothermal energy seething just beneath the surface of this active volcanic system, a truly otherworldly thermal basin.
