You can stand on the rim and view the enormous Yellowstone Caldera, but it’s hard to visualize a volcano or a set of eruptions that enormous. The power of Yellowstone, even 640,000 years after the mos...You can stand on the rim and view the enormous Yellowstone Caldera, but it’s hard to visualize a volcano or a set of eruptions that enormous. The power of Yellowstone, even 640,000 years after the most recent eruption, is seen in its fantastic geysers. The largest supervolcano in North America is beneath Yellowstone National Park in Wyoming. One interesting one is “Mammoth Mountain,” which explores Hot Creek and the volcanic area it is a part of in California.
