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Elevation Location Sl. No Name State Last eruption Meters Feet Coordinates - Mount Adagdak 645 2115 51°59′16″N 176°35′30″W / 51.98778°N 176.59167°W 1 Mount Akutan Alaska 1303 4275 54°8′4″N 165°59′10″W / 54.13444°N 165.98611°W 1996 2 Amak Alaska 488 1601 55°25′26″N 163°8′57″W / 55.42389°N 163.14917°W 1796 3 Mount Amukta Alaska 1066 3497 52°30′0″N 171°15′8″W / 52.50000°N 171.25222°W 1997 4 Mount Aniakchak Alaska 1341 4400 56°53′0″N 158°10′0″W / 56.88333°N 158.16667°W 1931 5 Mount Augustine Alaska 1252 4108 59°21′48″N 153°26′0″W / 59.36333°N 153.43333°W 2005 6 Bogoslof Island Alaska 150 492 53°56′0″N 168°2′0″W / 53.93333°N 168.03333°W 1992 7 - Buldir Volcano Alaska 656 2152 52°21′0″N 175°54′38″W / 52.35000°N 175.91056°W 8 - Alaska 5005 16,421 61°23′6″N 141°45′3″W / 61.38500°N 141.75083°W 9 - Alaska 4996 16,390 61°43′54″N 143°25′59″W / 61.73167°N 143.43306°W 10 Buzzard Creek Alaska 830 2723 64°4′0″N 148°25′0″W / 64.06667°N 148.41667°W 1050 BC 11 - Capital Alaska 2356 7728 62°26′N 144°06′W / 62.43°N 144.10°W 12 Mount Carlisle Alaska 1620 5315 52°53′38″N 170°3′15″W / 52.89389°N 170.05417°W 1987 13 - Mount Chagulak Alaska 1142 3747 52°34′36″N 171°8′0″W / 52.57667°N 171.13333°W 14 Mount Chiginagak Alaska 2221 7287 57°8′6″N 156°59′24″W / 57.13500°N 156.99000°W 1998 15 Alaska 1730 5676 52°49′30″N 169°56′38″W / 52.82500°N 169.94389°W 2014 16 - Cold Bay Volcano Alaska 1920 6299 55°04′55″N 162°53′38″W / 55.082°N 162.894°W 17 Mount Dana Alaska 1354 4442 55°38′28″N 161°12′50″W / 55.64111°N 161.21389°W 1890 BC 18 - Davidof Volcano Alaska 328 1076 51°57′15″N 178°19′34″E / 51.9542°N 178.326°E 19 - Mount Denison Alaska 2318 7606 58°25′4″N 154°26′57″W / 58.41778°N 154.44917°W 20 - Devils Desk Alaska 1954 6409 58°30′N 154°18′W / 58.5°N 154.3°W 21 - Alaska 2140 7021 58°51′19″N 153°32′31″W / 58.85528°N 153.54194°W 22 Mount Dutton Alaska 1506 4941 55°10′5″N 162°16′18″W / 55.16806°N 162.27167°W Unknown 23 Mount Edgecumbe Alaska 970 3132 57°3′0″N 135°45′0″W / 57.05000°N 135.75000°W 2220 BC ± 100 years 24 - Alaska 1436 4711 55°20′26″N 164°4′43″W / 55.34056°N 164.07861°W 25 Mount Alaska 1112 3648 54°39′0″N 164°26′0″W / 54.65000°N 164.43333°W 1830 26 Mount Frosty Alaska 2012 6601 55°4′54″N 162°48′50″W / 55.08167°N 162.81389°W Unknown 27 Fourpeaked Alaska 2105 6906 58°46′12″N 153°40′20″W / 58.77000°N 153.67222°W 2006 28 Alaska 1573 5161 51°47′25″N 178°47′38″W / 51.79028°N 178.79389°W 1989 29 - Mount Gilbert Alaska 818 2684 54°15′08″N 165°39′43″W / 54.2521°N 165.662°W 30 Great Sitkin Alaska 1740 5709 52°4′34″N 176°7′48″W / 52.07611°N 176.13000°W 1974 31 - Mount Gordon Alaska 2755 9039 62°8′0″N 143°5′0″W / 62.13333°N 143.08333°W 32 - Alaska 2317 7602 58°21′14″N 155°5′30″W / 58.35389°N 155.09167°W 33 Hayes Volcano Alaska 3034 9954 61°38′25″N 152°24′41″W / 61.64028°N 152.41139°W 1200 ± 300 years 34 - Mount Herbert Alaska 1280 4199 52°44′32″N 170°6′38″W / 52.74222°N 170.11056°W 35 Alaska 3053 10,016 60°1′55″N 153°5′25″W / 60.03194°N 153.09028°W 1876 36 Imuruk Lake Alaska 610 2001 65°36′0″N 163°55′0″W / 65.60000°N 163.91667°W 300 37 - Ingakslugwat Hills Alaska 190 623 61°26′0″N 164°28′0″W / 61.43333°N 164.46667°W 38 - Mount Isanotski Alaska 2446 8025 54°45′54″N 163°43′21″W / 54.76500°N 163.72250°W 39 Mount Kagamil Alaska 893 2930 52°58′25″N 169°43′0″W / 52.97361°N 169.71667°W 1929 40 Mount Kaguyak Alaska 901 2956 58°36′30″N 154°1′40″W / 58.60833°N 154.02778°W 1650 BC 41 Mount Kanaga Alaska 1307 4288 51°55′22″N 177°10′4″W / 51.92278°N 177.16778°W 1995 42 Kasatochi Island Alaska 314 1030 52°10′39″N 175°30′30″W / 52.17750°N 175.50833°W 2008 43 Alaska 2047 6716 58°16′47″N 154°57′48″W / 58.27972°N 154.96333°W 1912 44 - Mount Kialagvik Alaska 1677 5502 57°12′10″N 156°44′43″W / 57.20278°N 156.74528°W 45 Mount Alaska 1220 4003 52°06′11″N 177°36′13″E / 52.1031°N 177.6035°E 1990 46 - Mount Koniuji Alaska 273 896 52°13′0″N 175°8′0″W / 52.21667°N 175.13333°W 47 Korovin Volcano Alaska 1533 5029 52°22′54″N 174°9′57″W / 52.38167°N 174.16583°W 2006 48 - Mount Kukak Alaska 2043 6703 58°27′10″N 154°21′18″W / 58.45278°N 154.35500°W 49 Mount Kupreanof Alaska 1895 6217 56°0′40″N 159°47′50″W / 56.01111°N 159.79722°W 1987 50 Kookooligit Alaska 673 2208 63°36′0″N 170°26′0″W / 63.60000°N 170.43333°W 51 Little Sitkin Alaska 1174 3852 51°57′0″N 178°32′35″W / 51.95000°N 178.54306°W 1830 52 - Mount Mageik Alaska 2165 7103 58°11′41″N 155°15′10″W / 58.19472°N 155.25278°W 53 Mount Makushin Alaska 1800 5905 53°53′27″N 165°55′22″W / 53.89083°N 165.92278°W 1995 54 Mount Martin Alaska 1863 6112 58°10′20″N 155°21′40″W / 58.17222°N 155.36111°W 1953 55 - Mount Moffett Alaska 1196 3924 51°56′38″N 176°44′48″W / 51.94389°N 176.74667°W 56 Alaska 841 2759 58°16′0″N 155°9′24″W / 58.26667°N 155.15667°W 1912 57 - Nunivak Island Alaska 511 1676 60°1′0″N 166°20′0″W / 60.01667°N 166.33333°W 58 Mount Okmok Alaska 1073 3520 53°26′0″N 168°8′0″W / 53.43333°N 168.13333°W 2008 59 - Mount Recheschnoi Alaska 1984 6509 53°9′24″N 168°32′20″W / 53.15667°N 168.53889°W 60 Alaska 3108 10,197 60°29′7″N 152°44′31″W / 60.48528°N 152.74194°W 2009 61 - Mount Roundtop Alaska 1871 6138 54°48′0″N 163°35′20″W / 54.80000°N 163.58889°W 62 - Saint Michael (volcano) Alaska 715 2346 63°27′0″N 162°7′0″W / 63.45000°N 162.11667°W 63 Saint Paul Island Alaska 203 666 57°11′0″N 170°18′0″W / 57.18333°N 170.30000°W 1280 BC ± 40 years 64 Mount Pavlof Alaska 2519 8264 55°25′0″N 161°53′15″W / 55.41667°N 161.88750°W 2016 65 Pavlof Sister Alaska 2142 7027 55°27′10″N 161°50′35″W / 55.45278°N 161.84306°W 1786 66 - Pogromni Alaska 2002 6569 54°34′N 164°51′W / 54.57°N 164.85°W 67 - Roundtop Alaska 1871 6139 54°48′N 153°36′W / 54.80°N 153.60°W 68 - Alaska 4949 16,237 62°13′0″N 144°8′0″W / 62.21667°N 144.13333°W 69 Mount Seguam Alaska 1054 3458 52°18′55″N 172°35′30″W / 52.31528°N 172.59167°W 1993 70 - Mount Segula Alaska 1160 3806 52°0′55″N 178°8′8″W / 52.01528°N 178.13556°W 71 Mount Semisopochnoi Alaska 1221 4006 51°56′0″N 179°35′0″W / 51.93333°N 179.58333°W 1987 72 - Mount Sergief Alaska 560 1837 52°2′0″N 174°56′0″W / 52.03333°N 174.93333°W 73 Alaska 2857 9373 54°45′20″N 163°58′0″W / 54.75556°N 163.96667°W 2004 74 - Snowy Mountain Alaska 2162 7093 58°20′8″N 154°40′55″W / 58.33556°N 154.68194°W 75 Mount Spurr Alaska 3374 11,069 61°17′58″N 152°15′4″W / 61.29944°N 152.25111°W 1992 76 - St. Michael Alaska 715 2346 63°27′0″N 162°7′0″W / 63.45000°N 162.11667°W 77 St. Paul Island Alaska 203 666 57°11′0″N 170°18′0″W / 57.18333°N 170.30000°W 1280 BC ± 40 years 78 - Mount Steller Alaska 2272 7454 58°26′0″N 154°24′0″W / 58.43333°N 154.40000°W 79 - Mount Stepovak Alaska 1555 5102 55°56′0″N 160°0′0″W / 55.93333°N 160.00000°W 80 - Table Top-Wide Bay Alaska 792 2598 53°58′5″N 166°40′38″W / 53.96806°N 166.67722°W 81 - Mount Takawangha Alaska 1449 4754 51°52′22″N 178°0′20″W / 51.87278°N 178.00556°W 82 - Tana (Volcano) Alaska 1170 3839 52°49′48″N 169°16′12″W / 52.83000°N 169.27000°W 83 Mount Alaska 1806 5925 51°53′6″N 178°8′45″W / 51.88500°N 178.14583°W 1914 84 - Tlevak Strait-Suemez Island Alaska 50 164 55°15′0″N 133°18′0″W / 55.25000°N 133.30000°W 85 Trident Volcano Alaska 1864 6115 58°14′8″N 155°6′0″W / 58.23556°N 155.10000°W 1975 86 Ugashik-Peulik Alaska 1474 4836 57°45′3″N 156°22′5″W / 57.75083°N 156.36806°W 1814 87 Ukinrek Maars Alaska 91 299 57°49′54″N 156°30′35″W / 57.83167°N 156.50972°W 1977 88 - Mount Uliaga Alaska 888 2913 53°3′54″N 169°46′0″W / 53.06500°N 169.76667°W 89 Alaska 2507 8225 56°10′0″N 159°23′0″W / 56.16667°N 159.38333°W 2006 90 Mount Vsevidof Alaska 2149 7050 53°7′48″N 168°41′35″W / 53.13000°N 168.69306°W 1957 91 Mount Westdahl Alaska 1654 5426 54°31′6″N 164°39′0″W / 54.51833°N 164.65000°W 1992 92 Yantarni Volcano Alaska 1345 4413 57°1′17″N 157°11′6″W / 57.02139°N 157.18500°W 800 BC ± 500 years 93 Mount Yunaska Alaska 550 1804 52°38′34″N 170°37′43″W / 52.64278°N 170.62861°W 1937 94 Prindle Volcano Alaska - - 63°43′N 141°37′W / 63.72°N 141.62°W 95 Mount Churchill Alaska 4766 15,632 61°15′N 141°42′W / 61.25°N 141.7°W 1250 years ago 96 - Alaska 3661 12,010 62°06′N 144°30′W / 62.1°N 144.5°W 97 - Mount Jarvis Alaska 4091 13,422 62°1′4″N 143°37′2″W / 62.01778°N 143.61722°W 98 Alaska 4317 14,163 62°00′N 144°01′W / 62.00°N 144.02°W 1999 99 - Ta'u- American Samoa 931 3054 14°13′48″S 169°27′14″W / 14.23°S 169.454°W 100 Ofu-Olosega American Samoa 639 2096 14°10′30″S 169°37′05″W / 14.175°S 169.618°W 1866 101 - Tutuila American Samoa 653 2142 14°17′42″S 170°42′00″W / 14.295°S 170.70°W 102 - Vailulu'u American Samoa -592 -1842 14°17′42″S 170°42′00″W / 14.295°S 170.70°W 103 Arizona 3,480 11,420 33°54′22″N 109°33′46″W / 33.90611°N 109.56278°W 8-9 million years ago 104 Mount Elden Arizona 2,834 9,299 35°14′28″N 111°35′48″W / 35.24111°N 111.59667°W 250,000 years ago 105 Merriam Cone Arizona 2,077 6,813 35°18′N 111°18′W / 35.300°N 111.300°W 150,000 years ago 106 107 Red Mountain Arizona 2428 7965 - 740,000 years ago - Mountain Arizona 3851 12,633 35°20′47″N 111°40′40″W / 35.34639°N 111.67778°W 108 SP Crater Arizona 2141 7021 35°34′56″N 111°37′55″W / 35.58222°N 111.63194°W 71,000 years ago 109 Sunset Crater Arizona 2447 8026 35°21′51″N 111°30′11″W / 35.36417°N 111.50306°W 1122 ± 58 years 110 Amboy Crater 300 984 34°32′38″N 115°47′28″W / 34.54389°N 115.79111°W 10,000 years ago 111 Big Cave California 1259 4131 40°57′18″N 121°21′54″W / 40.955°N 121.365°W Holocene 112 California 1939 6362 41°22′01″N 121°20′53″W / 41.367°N 121.348°W 9,500 years ago 113

www.downloadexcelfiles.com Brushy Butte California 1174 3852 41°10′41″N 121°26′35″W / 41.178°N 121.443°W Holocene 114 Burney Mountain California 2397 7863 40°48′24″N 121°37′41″W / 40.80667°N 121.628°W Pleistocene 115 Cima California 1509 6925 35°15′N 115°45′W / 35.25°N 115.75°W 10,000 years ago 116 117 and the Fantastic Beds California 2105 6907 - 1680 Inyo Craters California 2629 8625 37°41′31″N 119°01′12″W / 37.692°N 119.02°W ~1400 118 Mount Konocti California 1312 4305 38°58′29″N 122°45′57″W / 38.9746°N 122.7659°W ~10,000 years ago 119 California 3189 10,462 40°29′17″N 121°30′18″W / 40.48806°N 121.50500°W 1917 120 Lassen Volcanic Center California - - 40°29′30″N 121°30′30″W / 40.49167°N 121.50833°W 1917 121 Long Valley California 3390 11,122 37°36′N 118°48′W / 37.6°N 118.8°W Pleistocene 122 - Malapai Hill California - - 33°54′N 116°00′W / 33.9°N 116.0°W 123 Mammoth Mountain California 3371 11,059 37°38′N 119°02′W / 37.63°N 119.03°W ~1400 124 California 2412 7913 41°22′N 121°20′W / 41.36°N 121.33°W 1080 ± 25 years 125 Mono Craters California 2,796 9,173 37°53′N 119°00′W / 37.88°N 119.00°W ~1350 126 Pinnacles California - - 36°29′13″N 121°10′01″W / 36.487°N 121.167°W 23 million years ago 127 Pisgah Crater California 774 2,539 34°44′47″N 116°22′30″W / 34.74639°N 116.37500°W 18,000 ± 5,000 years ago 128 Red Cones California 2,748 9,015 37°51′N 122°11′W / 37.85°N 122.19°W Holocene 129 Round Top California 538 1,764 37°35′N 119°03′W / 37.58°N 119.05°W 10 Million Years Ago 130 ? California 1,323 4,342 38°40′10″N 122°38′01″W / 38.669341°N 122.633488°W 2.4 million years ago 131 California 4,317 14,162 41°24′32″N 122°11′35″W / 41.409°N 122.193°W 1786 132 Sutter Buttes California 650 2,130 39°12′20.61″N 121°49′12.9″W / 39.2057250°N 121.820250°W 1.5 million years ago 133 Tumble Buttes California 2,191 7,188 40°41′N 121°33′W / 40.68°N 121.55°W 15,000 years ago 134 Twin Buttes California 1631 5351 40°47′N 121°36′W / 40.78°N 121.60°W Holocene 135 Ubehebe Craters California 752 2467 37°01′N 117°27′W / 37.02°N 117.45°W 4050 BC 136 Dotsero 2,230 7,316 39°39′40″N 107°03′22″W / 39.661°N 107.056°W 2200 BC 137 Colorado - - 37°43′36″N 106°46′28″W / 37.72667°N 106.77444°W 26.3 Ma 138 Colorado - - 39°23′46″N 104°45′34″W / 39.39611°N 104.75944°W 42.0 Ma 139 Colorado 3,946 12,945 40°28′10″N 105°53′42″W / 40.46944°N 105.89500°W ~20 Ma 140 Diamond Head 232 761 21°15′35″N 157°48′42″W / 21.25972°N 157.81167°W 148,000 BC 141 Haleakala or East Volcano Hawaii 3055 10,023 20°43′N 156°15′W / 20.71°N 156.25°W between A.D. 1480 and 1600 142 143 Hanauma Bay Hawaii - 642 - 10,000 - 32,000 BP Hualalai Hawaii 2521 8270 19°41′N 155°52′W / 19.69°N 155.87°W 1801 144 145 Ka'ena Point Hawaii - About 3,000 ft - 4.2 MYA Hawaii 450 1475 20°36′N 156°36′W / 20.6°N 156.6°W 1 MYA 146 Hawaii 1,598 5,243 22°03′24″N 159°29′48″W / 22.05667°N 159.49667°W 4 MYA 147 Kilauea Hawaii 1247 4091 19°27′07″N 155°17′31″W / 19.452°N 155.292°W 1983–Present 148 (mountain) Hawaii 1670 5480 20°5′10″N 155°43′2″W / 20.08611°N 155.71722°W 120,000 BP 149 150 Koko Hawaii - - - 50MYA 151 Koko Head Crater Hawaii 368 1207 - 10,000BP Koʻolau Range Hawaii 941 3149 21°22′N 157°48′W / 21.37°N 157.80°W Holocene 152 153 Hawaii 1,026 3,366 - 1.2 MYA Loihi Hawaii -975 -3199 18°55′N 155°15′W / 18.92°N 155.25°W 2007 154 Mahukona Hawaii - - 20°06′N 156°06′W / 20.1°N 156.1°W About 470,000 BP 155 156 Maui Hawaii 3055 10,023 - - Hawaii 4208 13,796 19°48′N 155°30′W / 19.8°N 155.5°W 2460 BC ± 100 years 157 Hawaii 4169 13,679 19°30′N 155°36′W / 19.5°N 155.6°W 1984 158 Mount Ka'ala Hawaii 1342 4,025 21°30′25″N 158°08′34″W / 21.50694°N 158.14278°W 2.6 MA 159 160 Punchbowl Crater Hawaii - 546 - 10,000 -75,000 BC 161 Hawaii 1,544 5,066 - - 162 West Maui Volcano Hawaii 1,764 5,788 - Less than 500,000 BP Big Southern Butte 2298 7540 43°14′N 113°01′W / 43.24°N 113.01°W 0.3 Ma 163 164 Blue Creek Idaho - - - - Craters of the Moon Idaho 2005 6578 43°25′N 113°30′W / 43.42°N 113.50°W 130 BC ± 50 years 165 166 Henry's Fork Caldera Idaho 2805 9203 - 1.3 Ma Island Park Caldera Idaho 2805 9203 44°20′N 111°20′W / 44.33°N 111.33°W 2.1 Ma 167 - Juniper Buttes Idaho 1905 6250 44°12′N 111°32′W / 44.20°N 111.53°W 168 Menan Buttes Idaho 1713 5619 43°36′N 111°30′W / 43.60°N 111.5°W 1.0 Ma 169 170 Split Butte Idaho - - - - 171 The Great Rift Idaho - - - - 172 Twin Peaks Idaho - - - - Jackson Volcano Mississippi - - 32°N 90°W / 32°N 90°W 65 million years ago 173 Taum Sauk Caldera Missouri - 1772 37°31′44″N 90°47′10″W / 37.5288°N 90.7862°W 1.5 bya 174 175 Big Cottonwood Canyon - - - - 176 McDermitt Complex Nevada - - - - Steamboat Springs Nevada 1415 4642 39°22′30″N 119°43′12″W / 39.375°N 119.72°W Pleistocene-Fumarolic 177 Soda Lakes Nevada 1251 4104 39°53′N 119°27′W / 39.883°N 119.450°W Holocene 178 179 Virgin Valley Nevada - - - - Pawtuckaway Mountains New Hampshire - - 43°06′39″N 71°11′11″W / 43.11083°N 71.18639°W Cretaceous 180 Ossipee Mountains New Hampshire - - 43°44′37″N 71°16′26″W / 43.74361°N 71.27389°W Cretaceous 181 Capulin Volcano New Mexico 2,494 8,182 36°47′20″N 103°57′42″W / 36.78889°N 103.96167°W 58,000 - 52,000 years ago 182 Carrizozo Malpais New Mexico 1,731 5,679 33°47′N 105°56′W / 33.78°N 105.93°W 140,000 years ago 183 Cerros del Rio New Mexico 664 2,178 35°42′N 106°12′W / 35.7°N 106.2°W 2.2 million years ago 184 Jemez Mountains New Mexico 3,525 - 35°53′N 106°32′W / 35.88°N 106.53°W 60,000 - 50,000 years ago 185 Jornada del Muerto Volcano New Mexico 1,565 5,136 33°32′N 106°52′W / 33.533°N 106.867°W 760,000 years ago 186 Kilbourne Hole New Mexico 1,555 4,240 31°58′N 106°58′W / 31.97°N 106.97°W 80,000 years ago 187 - El Malpais New Mexico - - 34°53′3″N 108°0′7″W / 34.88417°N 108.00194°W 188 Sierra Blanca New Mexico 3,652 11,981 33°22′27″N 105°48′31″W / 33.37417°N 105.80861°W 26 million years ago 189 Mount Taylor New Mexico 2,445 11,300 35°14′19″N 107°36′30″W / 35.23861°N 107.60833°W 1,500,000 years ago 190 Valles Caldera New Mexico 3,430 11,253 35°52′N 106°34′W / 35.87°N 106.57°W Pleistocene 191 - Agrigan Northern Mariana Islands 965 3165 18°48′N 145°42′E / 18.8°N 145.7°E 192 Ahyi Seamount Northern Mariana Islands -137 -449 20°25′N 145°02′E / 20.42°N 145.03°E 2001 193 Northern Mariana Islands 744 2441 17°36′N 145°50′E / 17.60°N 145.83°E 1887 194 Northern Mariana Islands 788 2592 16°21′N 145°40′E / 16.35°N 145.67°E 2006 195 - Northern Mariana Islands 857 2810 19°42′N 145°24′E / 19.7°N 145.4°E 196 - Esmeralda Bank Northern Mariana Islands -43 -141 15°00′N 145°15′E / 15.00°N 145.25°E 197 Farallon de Pajaros Northern Mariana Islands 360 1,180 20°30′N 144°54′E / 20.5°N 144.9°E 1967 198 Guguan Northern Mariana Islands 287 942 17°19′N 145°50′E / 17.32°N 145.83°E 1883 199 Maug Islands Northern Mariana Islands 227 745 20°01′N 145°13′E / 20.02°N 145.22°E 200 201 Mount Tapochau Northern Mariana Islands 474 1554 - - Northwest Rota-1 Northern Mariana Islands -517 -1696 14°36′04″N 144°46′30″E / 14.601°N 144.775°E 2004 202 Pagan Island Northern Mariana Islands 570 1870 18°06′N 145°46′E / 18.10°N 145.76°E 1993 203 204 Mount Rodondi Island Northern Mariana Islands - Sarigan Northern Mariana Islands 538 1765 16°42′29″N 145°46′48″E / 16.708°N 145.78°E 205 Supply Reef Northern Mariana Islands -8 -26 20°08′N 145°06′E / 20.13°N 145.10°E 1989 206 2,763 9,064 43°58′45.90″N 121°41′18.63″W / 43.9794167°N 121.6885083°W 5800 BC ± 1000 years 207 - Bald Mountain Caldera Oregon - - 43°25′N 121°25′W / 43.417°N 121.417°W 208 - Oregon 2,551 8,368 43°9′18.52″N 122°13′11.98″W / 43.1551444°N 122.2199944°W 209 Oregon 2,095 6,873 44°17′05.80″N 121°50′32.04″W / 44.2849444°N 121.8422333°W 460 AD 210 Black Butte Oregon 1,962 6,436 44°23′59.0″N 121°38′07.7″W / 44.399722°N 121.635472°W About 1,430,000 years ago 211 Blue Lake Crater Oregon 1,230 4,035 44°24′40″N 121°46′26″W / 44.411°N 121.774°W 680 ± 200 212 - Oregon 2,800 9,185 44°04′58″N 121°41′59″W / 44.08278°N 121.69972°W 213 Brown Mountain Oregon - - 42°22′N 122°16′W / 42.36°N 122.27°W >12,000 years ago 214 Cinnamon Butte Oregon 1956 6417 43°14′28″N 122°06′29″W / 43.241°N 122.108°W >6845 years ago 215 216 Group Oregon - - - - or Oregon 2,487 8,159 42°56′N 122°07′W / 42.93°N 122.12°W ~2290 BC 217 218 Crooked River caldera Oregon - - - 29.5 Ma - Oregon 1,450 4,750 43°06′N 118°42′W / 43.1°N 118.7°W 219 Oregon 2,665 8,744 43°31′14.5″N 122°08′58.5″W / 43.520694°N 122.149583°W >11,000 years ago 220 - Oregon 1,716 5,628 43°22′27″N 121°04′08″W / 43.37417°N 121.06889°W 221 Gorda Ridge Oregon -3,000 -9,842 42°40′N 126°47′W / 42.67°N 126.78°W 1996 222 - Gray Butte Oregon - - 44°30′N 121°18′W / 44.5°N 121.3°W 223 [ Oregon 3,426 11,237 45°22′24.65″N 121°41′45.31″W / 45.3735139°N 121.6959194°W 1866 [5 224 - Jackies Butte Oregon 1,418 4,652 42°36′22″N 117°35′20″W / 42.606°N 117.589°W 225 Oregon 3199 10,492 44°42′N 121°48′W / 44.7°N 121.8°W 950 AD 226 Oregon 1400 4600 43°08′49″N 117°27′36″W / 43.147°N 117.460°W 1250 BC 227 - Oregon 2,380 7,810 43°37′37″N 121°57′50″W / 43.62694°N 121.96389°W 228

www.downloadexcelfiles.com 229 McDermitt Complex Oregon - - - - 230 Mahogany Mountain Oregon - - - - - Mount McLoughlin Oregon 2,894 9,492 42°26′40.10″N 122°18′56.23″W / 42.4444722°N 122.3156194°W 231 - Middle Sister Oregon 3,063 10,050 44°09′N 121°47′W / 44.150°N 121.783°W 232 - Newberry Caldera Oregon 2,434 7,986 43°42′N 121°30′W / 43.7°N 121.5°W 233 - North Sister Oregon 3,075 10,090 44°10′N 121°46′W / 44.167°N 121.767°W 234 Oregon 2,200 7,219 44°49′18.1″N 121°45′50.2″W / 44.821694°N 121.763944°W more than 25,000 years ago 235 - Oregon - - 42°31′N 122°04′W / 42.51°N 122.06°W 236 237 Oregon - - - - - Round Butte Oregon - - 44°30′N 121°00′W / 44.5°N 121.0°W 238 Saddle Butte Oregon 1,700 - 43°00′N 117°48′W / 43.00°N 117.80°W Holocene 239 - South Sister Oregon 3,158 10,360 44°06′N 121°46′W / 44.100°N 121.767°W 240 241 South- Volcanics Oregon - - - - - Strawberry Volcanics Oregon - - 44°12′N 118°48′W / 44.2°N 118.8°W 242 243 Oregon - 636 - - - Oregon 2,800 9,184 43°09′10.21″N 122°03′59.45″W / 43.1528361°N 122.0665139°W 244 - Oregon 2,390 7,840 44°28′42″N 121°50′29″W / 44.47833°N 121.84139°W 245 246 Tower Mountain caldera Oregon - - - Mount Oregon 2,376 7,790 44°19′55″N 121°50′13″W / 44.332°N 121.837°W 670 AD 247 248 Western Oregon - - - 5-0.5 million years ago 249 Wildcat Mountain caldera Oregon - - - - Bear Butte South Dakota 1,349 4,426 44°28′33″N 103°25′37″W / 44.475833°N 103.426944°W 250 Pilot Knob Texas 169 554 30°09′43″N 97°42′22″W / 30.162°N 97.706°W late Cretaceous 251 Bald Knoll Utah 2,135 7,005 37°19′41″N 112°24′29″W / 37.328°N 112.408°W Holocene 252 Butte Utah 1,609 5,279 39°36′54″N 112°48′11″W / 39.615°N 112.803°W 900,000 years ago 253 Pavant Butte Utah 1,800 5,906 39°07′35″N 112°33′08″W / 39.1263°N 112.5521°W 16,000 years ago 254 Black Rock Desert volcanic field Utah 1,800 5,904 38°58′12″N 112°30′00″W / 38.970°N 112.500°W 600–900 years ago 255 - Santa Clara Utah 1,465 4,806 37°15′25″N 113°37′30″W / 37.257°N 113.625°W 256 Mole Hill Virginia - - 38°26′55″N 78°57′12″W / 38.44861°N 78.95333°W 47 million years ago 257 Trimble Knob Virginia - - 38°24′17″N 79°35′16″W / 38.40472°N 79.58778°W 35 million years ago 258 - Battle Ground Lake Washington 229 750 45°48′19″N 122°39′29″W / 45.80528°N 122.65806°W 259 Washington - - 48°46′09″N 121°51′10″W / 48.7692861°N 121.8526467°W 500,000 to 300,000 years ago 260 Washington 3,743 12,281 46°12′09″N 121°29′27″W / 46.20250°N 121.49083°W 500 BC ± 1000 years 261 Washington 3,285 10,778 48°46′38″N 121°48′48″W / 48.77722°N 121.81333°W 1880 262 Peak Washington 3,213 10,541 48°06′45″N 121°06′50″W / 48.11250°N 121.11389°W ~17th-18th Century 263 - Washington 2,494 8,184 46°30′N 121°27′W / 46.50°N 121.45°W 264 Washington 1,513 5,925 45°56′N 121°49′W / 45.93°N 121.82°W ~6250 BC 265 - Lone Butte Washington - - 46°03′16″N 121°50′21″W / 46.05444°N 121.83917°W 266 Marble Mountain-Trout Creek Hill volcanic zone Washington - - 45°54′N 122°00′W / 45.9°N 122.0°W ~7700 years ago 267 Washington 4,392 14,411 46°51′11″N 121°45′35″W / 46.85306°N 121.75972°W 1894 268 Mount St. Helens Washington 2,550 8,364 46°11′28″N 122°11′39″W / 46.19111°N 122.19417°W 2008 269 - Silver Star Mountain Washington 1,330 4,364 45°44′51.8″N 122°14′20.5″W / 45.747722°N 122.239028°W 270 - Simcoe Mountains Washington - - 46°06′N 120°54′W / 46.1°N 120.9°W 271 Trout Creek Hill Washington 890 2,920 45°50′11″N 121°59′41″W / 45.8365040°N 121.9948065°W 340,000 years ago 272 Washington 1,329 4,360 45°53′N 122°05′W / 45.88°N 122.08°W 5750 BC 273 White Chuck Cinder Cone Washington 1,830 6,002 48°03′N 121°10′W / 48.05°N 121.17°W 274 70,000 years ago (magmatic) / 1350 BC Yellowstone caldera Wyoming 2,805 9,203 44°26′N 110°40′W / 44.43°N 110.67°W 275 ± 200 years (hydrothermal)

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