Volcano Watch: Newberry Volcano is an impressive but unappreciated giant

Unvegetated Big Obsidian Flow about 1,640 feet below people. Central Pumice Cone separates East Lake (distant) and Paulina Lake. (Courtesy photo/Special to West Hawaii Today)

Lava flows erupted at Newberry cover an area larger than Rhode Island. Powerful explosive eruptions sent volcanic ash into Idaho and the San Francisco Bay Area. A deep caldera indents its summit, hosting a flow of obsidian and thick beds of explosive pumice.