Here's why:
* Caldera: The word "caldera" refers to a large, bowl-shaped depression formed when a volcano collapses after a massive eruption.
* Supervolcano: Supervolcanoes are volcanoes capable of producing eruptions of magnitude 8 on the Volcanic Explosivity Index (VEI), the largest possible scale. These eruptions are so massive they can devastate entire continents.
La Garita Caldera is a massive volcanic structure in southwestern Colorado, USA. It erupted about 27.8 million years ago, creating one of the largest known volcanic eruptions in Earth's history. The eruption was so powerful that it released an estimated 5,000 cubic kilometers of ash and other debris.
So, while it might not look like a traditional volcano, La Garita Caldera is a volcanic feature formed by a supervolcanic eruption.
