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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]
Mount Talbert is a volcanic cinder cone in Clackamas County, Oregon. It is part of the Boring Lava Field , [ 3 ] a zone of ancient volcanic activity in the area around Portland . Its summit rises to an elevation of 740+ ft (230+ m).
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 ...
Lava Butte is a cinder cone in central Oregon, United States, just west of U.S. Route 97 between the towns of Bend, and Sunriver in Deschutes County.It is part of a system of small cinder cones on the northwest flank of Newberry Volcano, a massive shield volcano which rises to the southeast.
The area has many rhyolitic domes, such as Melvin Butte, plus andesitic cinder cones, including those of the Triangle Hill and Triangle Peak area, whose composition is similar to the Tumalo Tuff (and Bend Pumice), and Shevlin Park Tuff. [2] This area has andesitic and mafic cinder cones, such as Lava Butte. [3] and rhyolite domes. [4]
Once the pine cones are collected, they're brought to a network of nurseries, where the seeds are extracted and grown into seedlings. One million seedlings will plant about 4,500 acres of new forest.
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.
Mount Scott is a volcanic cinder cone with its summit in Clackamas County, Oregon.The summit rises to an elevation of 1,091 feet (333 m). [1] It is part of the Boring Lava Field, [3] a zone of ancient volcanic activity in the area around Portland, and was named for Harvey W. Scott, a 19th and 20th century editor of The Oregonian newspaper.