Volcano Watch: Newberry Volcano is an impressive but unappreciated giant

  • USGS photo Unvegetated Big Obsidian Flow about 500 m (1640 ft) below people. Central Pumice Cone separates East Lake (distant) and Paulina Lake.

Newberry Volcano is one of the largest and most hazardous active volcanoes in the United States. It is designated a “very high threat” volcano in a recent assessment by the U.S. Geological Survey, like Mauna Loa and Kilauea. It has been active for more than 530,000 years, most recently 1,300 years ago.