[8] Newberry lies 37 miles (60 km) east[9] of the major crest of the Cascade Range in the High Lava Plains region,[7] rising 3,500 feet (1,100 m) above its surroundings.
[10] Climate data for the Newberry National Volcanic Monument are collected at the Lava Butte cinder cone, which had an average annual precipitation of 17.9 inches (455 mm) from 2002 to 2012.
[13] Only one stream appears on Newberry's entire surface, and it remains unclear whether the volcano has ever been able to support glaciers on its slopes,[10] since the mountain lacks cirques (amphitheater-like valleys formed by glacial erosion) or evidence of contact between lava and ice.
[28] Animals near Newberry Volcano include burrowing owls, kangaroo rats, lizards, bats, rattlesnakes, eagles, porcupines, otters, bobcats,[12] mule deer, Roosevelt elk,[29] ducks,[30] and American pika.
These habitat islands range from 0.74 to 279.23 acres (0.3 to 113 ha) in area and sustain forests that have not been significantly altered by humans other than nearby fire suppression and land management efforts.
[9] The oldest rocks in this region include silicic (rich in silica) lava domes from the late Miocene or early Pliocene, which lie near the province's eastern and southern borders, respectively.
[45] At Newberry, the subducting plate has a depth that is 12 to 31 miles (20 to 50 km)[9][42] shallower than elsewhere in the major crest of the Cascades,[b] accounting for its unique magmas.
Most of these exhibit saucer-like summit depression landforms, with notable exceptions at Lava Top and North Kawak Buttes, which have craters that are 200 to 300 feet (61 to 91 m) in depth.
With a lopsided shape where the northeastern rim is 82 feet (25 m) taller than the southwestern counterpart,[68] this cinder cone sits 10 miles (16 km) south of Bend.
[66] The nearby Badlands shield volcano, which formed out of a rootless vent to produce a large basaltic lava flow at Newberry, has a diameter of 8 miles (13 km).
[10] These include East Butte and China Hat at the eastern base of the volcano, which date to 850,000 and 780,000 years ago, and therefore predate Newberry.
[70] During the late Pleistocene, Newberry Volcano produced a number of voluminous lava flows, made of basalt, which originated from several vents on its northern flank and reached the modern areas of Bend and Redmond.
Lava from the last of these eruptions about 78,000 years ago covered the Bend area, surrounded the Pilot Butte cinder cone, and filled the Deschutes River bed.
As a result of compositional zoning within the magma chamber that feeds the volcano, its ash deposits may show different chemical and mineralogical makeups.
Mount Mazama erupted 7,700 years ago, producing volcanic ash and pumice that accumulated to a thickness of up to 6 feet (1.8 m) on the Newberry Volcano, covering many of the lava flows on its slopes.
[74] About 7,000 years ago, eruptions occurred along the rift zone northwest of Newberry Volcano's caldera, yielding 12 lava flows that encompassed an area of 23 square miles (60 km2).
[80] If future lava flows from Newberry Volcano are of comparable size to its late Pleistocene eruptions, they would bury settlements throughout the Central Oregon region.
They would also likely destroy segments of U.S. Route 97, disabling transportation in the area, in addition to likely ruining gas pipelines and power lines that extend electricity to California,[52] both of which would be accompanied by serious economic consequences.
Pyroclastic flows, on the other hand, travel at speeds of 20 to 200 miles per hour (32 to 322 km/h), and their violent force could incinerate or pulverize objects in their path, or asphyxiate living things.
[84] Tephra from explosive eruptions would short-circuit electric transformers and power lines, clog engine filters, produce clouds that might yield lightning, and pose a hazard to aircraft overhead.
[21] If lava flows from an eruption blocked the Deschutes River, they might generate floods upstream by increasing water level and downstream once the blockage clears.
During an archaeological excavation near Paulina Lake in 1992, researchers discovered remnants of a central hearth and a housing structure with support posts and linear rock arrangements with dimensions of 13 by 16 feet (4.0 by 4.9 m).
[33] Because of the efforts of Hollis Dole, head of the Oregon Department of Geology, to promote the area, in 1963 NASA scientists became interested in using lava fields at Newberry to prepare for the United States' first Moon landing.
[3] With an area of more than 54,000 acres (220 km2),[99] it forms a near-circular shape around the summit caldera and then a long corridor from the mountain's northwestern side to the Deschutes River that includes a rift zone.
An investigation conducted by the United States Geological Survey in 1981 drilled a well 3,057 feet (932 m) in depth at a location to the east of the Big Obsidian flow, finding temperatures of 509 °F (265 °C) under the surface there.
An energy company drilled two holes with a depth of 10,000 feet (3,000 m) in 1995 and 1996, but they were unable to find fluids, so they lacked a mechanism to drive turbines and opted to end the project at Newberry.
[12] Horse riding is also possible in a section of the Peter Skene Ogden Trail, 3 miles (4.8 km) long, which runs through the monument area; snowmobiling and cross-country skiing are also popular.
[102] The Lava Lands Visitor Center within the Monument has an exhibit on the area's geology and culture and offers a paved path that runs for 5.5 miles (8.9 km).
This feature is the state's longest continuous lava tube, which can be hiked for more than one mile to the north and west and has an arching ceiling with a thickness of 45 feet (14 m).
[97] The trail to the volcano's summit at Paulina Peak lasts 15.5 miles (24.9 km) from Highway 97, with an easy paved road to the caldera and four rest stops, though it grows steep and twisty near the end.