Newberry Volcano is a large, active, shield-shaped stratovolcano located about 20 miles south of Bend, Oregon, United States, 35 miles east of the major crest of the Cascade Range, within the Newberry National Volcanic Monument. Its highest point is Paulina Peak. Newberry is the largest volcano in the Cascade Volcanic Arc, with an area of 1,200 square m…Newberry Volcano is a large, active, shield-shaped stratovolcano located about 20 miles south of Bend, Oregon, United States, 35 miles east of the major crest of the Cascade Range, within the Newberry National Volcanic Monument. Its highest point is Paulina Peak. Newberry is the largest volcano in the Cascade Volcanic Arc, with an area of 1,200 square miles when its lava flows are taken into account. From north to south, the volcano has a length of 75 miles, with a width of 27 miles and a total volume of approximately 120 cubic miles. It was named for the geologist and surgeon John Strong Newberry, who explored central Oregon for the Pacific Railroad Surveys in 1855.