Oregon is home to a number of volcanic features, with a total of about 90 potentially active volcanoes. The most notable volcanic region in the state is the Cascade Range, which spans from northern Washington down to Northern California. Within this range, you’ll find some of the most significant volcanoes in Oregon, including Mount Hood, Mount St. Helens, and Newberry Volcano.
Most of these volcanoes are stratovolcanoes, characterized by their steep, conical shapes. It’s important to note that not all of these volcanoes have erupted in recent history, but they are considered potentially active. The last significant eruption in Oregon was the eruption of Mount Mazama, which formed Crater Lake about 7,700 years ago.
Overall, while Oregon has a rich volcanic history, the exact number of volcanoes can vary depending on the criteria used to define what constitutes a volcano. The state’s geological activity makes it an interesting region for both scientists and visitors interested in learning more about volcanic landscapes.