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...

with breccia between lava flows, though breccia is not well-exposed elsewhere on the mountain. Near the summit of Pelican Butte, tuff breccia and lapilli...

Powell Butte is an extinct cinder cone butte in Portland, Oregon, United States. It is part of the Boring Lava Field, which includes more than 80 small...

Volcanic Monument consists of four primary visitor destinations: Lava Butte, Lava River Cave, Lava Cast Forest, and Newberry Caldera. The highest point within...

erupted between 285,000 and 500,000 years ago. As part of the Boring Lava Field, Rocky Butte is considered an outlier of the Cascade Range. It was produced...

above the lava plain in southern Butte County, east of Craters of the Moon National Monument. Big Southern Butte consists of two coalesced lava domes with...

Black Butte (formerly Wintoon Butte, Cone Mountain, Sugar Loaf and Muir's Peak) is a cluster of overlapping dacite lava domes in a butte, a satellite cone...

the Boring Lava pushing down on rock from the Troutdale formation. Intrusions of Boring Lava formed outcrops at Highland Butte, La Butte, and potentially...

In geomorphology, a butte (/bjuːt/) is an isolated hill with steep, often vertical sides and a small, relatively flat top; buttes are smaller landforms...

hornblende dacite lava domes. The volcanic cones at Olallie Butte and Mount Jefferson were erupted over deposits from the Minto lava group, which have...