From Towering Rockies to Erupting Fury: Can You Conquer This U.S. Mountains & Volcanoes Quiz?

Which U.S. volcano is the champion of activity in the lower 48 states, boasting over 50 eruptions since 1700?

Under your feet, massive tectonic plates shift like slow-moving giants, lifting the Rockies and fueling the Cascades' volcanic chain. The U.S. contains 10% of the world’s active volcanoes and the tallest peak outside of Asia, though many remain in a dangerous slumber. Did you know the Yellowstone caldera is large enough to contain Tokyo, or that Mauna Kea is taller than Everest when measured from the seafloor? This quiz dives into the science: how shield volcanoes create basalt plains, why stratovolcanoes explode with silica-rich fury, and which peaks harbor glaciers strong enough to withstand a warming world. From seismic boundaries to volcanic chemistry, test your knowledge of Earth’s most powerful forces!