Quiz: Which volcanic event led to the formation of Crater Lake? August 24, 2025 by Gideon Lakewood Which volcanic event led to the formation of Crater Lake? Discover more about Crater Lake Tours at our home page. A) The eruption of Mount Mazama B) The collapse of Mount Shasta C) The formation of the Cascades Range D) The eruption of Mount St. Helens Submit Answer
