Name | Type | Elevation (m) | Elevation (ft) | Last eruption date | Last eruption VEI | Location |
Boring Lava Field | Volcanic field | 1,236 | 4,055 | Pleistocene | | 45°40′N 122°41′W / 45.66°N 122.68°W / 45.66; -122.68 |
Rocky Butte | Cinder cone | 174 | 571 | Pleistocene | | 45°32′49″N 122°33′54″W / 45.547°N 122.565°W / 45.547; -122.565 |
Powell Butte | Cinder cone | 191 | 627 | Pleistocene | | 45°29′13″N 122°30′14″W / 45.487°N 122.504°W / 45.487; -122.504 |
Mount Sylvania | Cinder cone | 292 | 958 | Pleistocene | | 45°26′17″N 122°43′16″W / 45.438°N 122.721°W / 45.438; -122.721 |
Mount Hood | Stratovolcano | 3,426 | 11,240 | 1866 (major), 1907 (minor) | 2 | 45°22′26″N 121°41′42″W / 45.374°N 121.695°W / 45.374; -121.695 |
Olallie Butte | Shield volcano | 2,199 | 7,215 | Pleistocene | | 44°49′12″N 121°45′50″W / 44.820°N 121.764°W / 44.820; -121.764 |
Mount Jefferson | Stratovolcano | 3,199 | 10,495 | 950 AD? | | 44°40′26″N 121°47′56″W / 44.674°N 121.799°W / 44.674; -121.799 |
Three Fingered Jack | Shield volcano | 2,390 | 7,841 | Pleistocene | | 44°28′41″N 121°50′42″W / 44.478°N 121.845°W / 44.478; -121.845 |
Hogg Rock | Tuya | 1,548 | 5,080 | Pleistocene | | 44°25′19″N 121°52′37″W / 44.422°N 121.877°W / 44.422; -121.877 |
Blue Lake Crater | Maar | 1,230+ | 4,035 | 680 AD ± 200 years | | 44°24′40″N 121°46′26″W / 44.411°N 121.774°W / 44.411; -121.774 |
Hoodoo Butte | Cinder cone | 1,738 | 5,702 | Holocene | | 44°24′07″N 121°53′02″W / 44.402°N 121.884°W / 44.402; -121.884 |
Sand Mountain Field | Cinder cones | 1,664 | 5,459 | 70 AD ± 150 years | | 44°23′N 121°56′W / 44.38°N 121.93°W / 44.38; -121.93 |
Hayrick Butte | Tuya | 1,683 | 5,523 | Pleistocene | | 44°23′56″N 121°52′16″W / 44.399°N 121.871°W / 44.399; -121.871 |
Black Butte | Stratovolcano | 1,937 | 6,355 | 1,430,000 years ago (Pleistocene) | | 44°23′56″N 121°38′02″W / 44.399°N 121.634°W / 44.399; -121.634 |
Mount Washington | Shield volcano | 2,376 | 7,795 | 1,330 BP (flank eruption), 250,000 years ago (main) | | 44°19′55″N 121°50′17″W / 44.332°N 121.838°W / 44.332; -121.838 |
Belknap Crater | Shield volcanoes | 2,095 | 6,873 | 480 AD? | 2? | 44°17′06″N 121°50′35″W / 44.285°N 121.843°W / 44.285; -121.843 |
Black Crater | Shield volcano | 2,210 | 7,251 | - | | 44°15′58″N 121°44′53″W / 44.266°N 121.748°W / 44.266; -121.748 |
Three Sisters | Complex volcano | 3,157 | 10,358 | 1,600 BP | | 44°06′N 121°46′W / 44.10°N 121.77°W / 44.10; -121.77 |
Broken Top | Stratovolcano | 2,797 | 9,055 | 100,000 BP | | 44°04′59″N 121°41′56″W / 44.083°N 121.699°W / 44.083; -121.699 |
Pilot Butte | Cinder cone, lava dome | 1,261 | 4,138 | Pleistocene | | 44°03′40″N 121°16′59″W / 44.061°N 121.283°W / 44.061; -121.283 |
Tumalo Mountain | Shield volcano | 2,370 | 7,775 | Pleistocene | | 44°00′18″N 121°38′31″W / 44.005°N 121.642°W / 44.005; -121.642 |
Mount Bachelor | Stratovolcano | 2,764 | 9,068 | 5800 BC | | 43°58′44″N 121°41′17″W / 43.979°N 121.688°W / 43.979; -121.688 |
Lava Butte | Cinder cone | 1,529 | 5,016 | 7,000 BP | | 43°55′05″N 121°21′22″W / 43.918°N 121.356°W / 43.918; -121.356 |
Newberry Volcano | Shield volcano | 2,435 | 7,989 | 690 AD | 4 | 43°43′19″N 121°13′44″W / 43.722°N 121.229°W / 43.722; -121.229 |
Maiden Peak | Shield volcano | 2,383 | 7,818 | - | | 43°37′34″N 121°55′30″W / 43.626°N 121.925°W / 43.626; -121.925 |
Davis Lake | Volcanic field | 2,163 | 7,096 | 2,790 BC? | | 43°34′N 121°49′W / 43.57°N 121.82°W / 43.57; -121.82 |
Diamond Peak | Shield volcano, stratovolcano | 2,665 | 8,744 | Less than 100,000 BP (most likely 11,000 years ago) | | 43°31′12″N 122°08′56″W / 43.520°N 122.149°W / 43.520; -122.149 |
Devils Garden | Volcanic field | 1,698+ | 5,571 | Unknown | | 43°30′43″N 120°51′40″W / 43.512°N 120.861°W / 43.512; -120.861 |
Squaw Ridge | Volcanic field | 1,711 | 5,613 | Unknown | | 43°28′19″N 120°45′14″W / 43.472°N 120.754°W / 43.472; -120.754 |
Four Craters | Volcanic field | 1,501 | 4,924 | Unknown | | 43°21′40″N 120°40′08″W / 43.361°N 120.669°W / 43.361; -120.669 |
Cinnamon Butte | Cinder cones | 1,956 | 6,417 | Unknown | | 43°14′28″N 122°06′29″W / 43.241°N 122.108°W / 43.241; -122.108 |
Howlock Mountain | Shield volcano | 2,545 | 8,351 | Pleistocene | | 43°11′31″N 122°02′20″W / 43.192°N 122.039°W / 43.192; -122.039 |
Mount Bailey | Shield volcano | 2,551 | 8,368 | Less than 100,000 BP | | 43°09′18″N 122°13′16″W / 43.155°N 122.221°W / 43.155; -122.221 |
Mount Thielsen | Shield volcano | 2,799 | 9,184 | Pleistocene | | 43°09′11″N 122°04′01″W / 43.153°N 122.067°W / 43.153; -122.067 |
Yamsay Mountain | Shield volcano | 2,498 | 8,196 | Pleistocene | | 42°55′52″N 121°21′50″W / 42.931°N 121.364°W / 42.931; -121.364 |
Mount Mazama | Stratovolcano, Shield volcano, Caldera, lava domes | 2,487 | 8,159 | 2250 BC ± 300 years | | 42°56′N 122°07′W / 42.93°N 122.12°W / 42.93; -122.12 |
Mount Scott | Stratovolcano | 2,722 | 8,929 | Pleistocene (400,000 years ago) | | 42°55′23″N 122°01′05″W / 42.923°N 122.018°W / 42.923; -122.018 |
Hillman Peak | Stratovolcano | 2,484 | 8,157 | Pleistocene | | 42°34′N 122°06′W / 42.57°N 122.10°W / 42.57; -122.10 |
Union Peak | Shield volcano | 2,350 | 7,709 | Pleistocene | | 42°49′52″N 122°13′26″W / 42.831°N 122.224°W / 42.831; -122.224 |
Pelican Butte | Shield volcano | 2,450 | 8,037 | 300,000 BP | | 42°30′47″N 122°08′46″W / 42.513°N 122.146°W / 42.513; -122.146 |
Mount McLoughlin | Stratovolcano with a cinder cone and underlied by a shield volcano | 2,894 | 9,495 | 20,000 BP | | 42°26′42″N 122°18′54″W / 42.445°N 122.315°W / 42.445; -122.315 |
Brown Mountain | Shield volcano with a cinder cone | 2,238+ | 7,344+ | 12,000 years ago (main), 2,000 years ago (flank) | | 42°13′N 122°10′W / 42.21°N 122.16°W / 42.21; -122.16 |
Aspen Butte | Shield volcano | 2,502 | 8,208 | Less than 3.5 ma | | 42°18′54″N 122°05′17″W / 42.315°N 122.088°W / 42.315; -122.088 |