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The Boring Lava Field (also known as the Boring Volcanic Field) [3] is a Plio-Pleistocene volcanic field with cinder cones, small shield volcanoes, and lava flows in the northern Willamette Valley of the U.S. state of Oregon and adjacent southwest Washington.
Rocky Butte (previously known as Mowich Illahee [4] and Wiberg Butte) is an extinct cinder cone butte in Portland, Oregon, United States. It is also part of the Boring Lava Field, a group of volcanic vents and lava flows throughout Oregon and Washington state. The volcano erupted between 285,000 and 500,000 years ago.
J.E. Allen, an emeritus professor of Geology at Portland State University, listed its elevation as 560 feet (170 m) in a 1975 publication. [3] Powell Butte is a cinder cone butte [4] and is part of the Plio-Pleistocene Boring Lava Field, [4] a group of volcanic cones that got their name from the low, forested Boring Hills formation. [5]
Lava Butte, a cinder cone in Newberry National Volcanic Monument, Oregon. A list of cinder cones is shown below. This list is incomplete; ...
The field includes 23 basaltic and basaltic andesitic cinder cones and lava flows, for a total of 42 volcanic vents within two roughly north–south trending alignments. Its total dense-rock equivalent eruptive output is 0.22 to 0.29 cubic miles (0.92 to 1.21 km 3 ), with subfeatures including a tephra field and a lava tube system.
Kelly Butte Natural Area is a city park of about 23 acres (9.3 ha) in southeast Portland in the U.S. state of Oregon, just east of Interstate 205.The park is named after pioneer Clinton Kelly, who settled the area east of the Willamette River in 1848. [2]
Cinnamon Butte; Highest point; Elevation: 6,427 ft (1,959 m) NAVD 88 [1] Coordinates: 1]: Geography; Location: Douglas County, Oregon, U.S.: Parent range: Cascades: Topo map: USGS Mount Thielsen: Geology; Rock age: Holocene? [2]: Mountain type(s): Cinder cone, lava dome, volcanic field: Volcanic arc: Cascade Volcanic Arc: Last eruption: More than 6845 years ago [2]: Cinnamon Butte is a group ...
The Davis Lake volcanic field, is a volcanic field with a group of andesitic cinder cones, lava flows and basaltic andesite shield volcano. The field is located east of the Cascade Range of Oregon, United States. [1]