JCrater Lake in Oregon was produced when _____.

a large explosion blew out the side of a large volcano

the lava dam blocked a river

a lava flow erupted from a volcano

the summit of a volcano collapsed

1 answer

Crater Lake in Oregon was produced when the summit of a volcano collapsed. This event occurred around 7,700 years ago after the cataclysmic eruption of Mount Mazama, resulting in the formation of the caldera that eventually filled with water, creating the lake we see today.