Newberry Crater
| Newberry Volcano | |
|---|---|
Newberry Caldera, with Paulina Lake, East Lake, and Big Obsidian Flow
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| Highest point | |
| Elevation | 7,989 ft (2,435 m) |
| Prominence | 3,214 feet (980 m) |
| Coordinates | 43°41′21″N 121°15′18″W / 43.689195264°N 121.25488985°WCoordinates: 43°41′21″N 121°15′18″W / 43.689195264°N 121.25488985°W |
| Geography | |
| Location | Deschutes County, Oregon, U.S. |
| Parent range | Cascade Range |
| Topo map | USGS Paulina Peak |
| Geology | |
| Age of rock | About 600,000 years old |
| Mountain type | Characteristics of both shield volcanoes and composite volcanoes |
| Volcanic arc | Cascade Volcanic Arc |
| Last eruption | 1,300 years ago |
| Climbing | |
| Easiest route | Road to Paulina Peak |
| Designated | 1976 |
Newberry Volcano (also known as Newberry Caldera) is a large active shield-shaped stratovolcano located 35 miles (56 km) east of the major crest of the Cascade Range and about 20 miles (32 km) south of Bend, Oregon, within the Newberry National Volcanic Monument. The largest volcano in the Cascade Volcanic Arc, it has roughly the same area as the state of Rhode Island at 1,200 square miles (3,100 km2) when its lava flows are taken into account. From its northernmost to southernmost point, the volcano is 75 miles (121 km) in length, with a width of 27 miles (43 km) and a total volume of approximately 120 cubic miles (500 km3). It was named for the geologist and surgeon John Strong Newberry, who explored central Oregon for the Pacific Railroad Surveys in 1855, and the surrounding area has been inhabited by Native American populations for more than 10,000 years.
Newberry Volcano possesses a large caldera 4 by 5 miles (6.4 km × 8.0 km) in diameter, called the Newberry Caldera. Within the caldera there are two lakes (Paulina Lake and East Lake). The volcano and its vicinity feature many pyroclastic cones, lava flows, and lava domes; it has more than 400 vents, the most of any volcano in the contiguous United States. Glaciers may have once been present at the volcano, though this remains unclear, and the volcano is very dry with low precipitation levels and little surface runoff.
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Wikipedia