<Tr> <Td> Black Buttes </Td> <Td> - </Td> <Td> - </Td> <Td> 48 ° 46 ′ 09" N 121 ° 51 ′ 10" W ﻿ / ﻿ 48.7692861 ° N 121.8526467 ° W ﻿ / 48.7692861; - 121.8526467 ﻿ (Black Buttes) </Td> <Td> 500,000 to 300,000 years ago </Td> </Tr> <Tr> <Td> Mount Adams </Td> <Td> 3,743 </Td> <Td> 12,281 </Td> <Td> 46 ° 12 ′ 09" N 121 ° 29 ′ 27" W ﻿ / ﻿ 46.20250 ° N 121.49083 ° W ﻿ / 46.20250; - 121.49083 ﻿ (Mount Adams) </Td> <Td> 500 BC ± 1000 years </Td> </Tr> <Tr> <Td> Mount Baker </Td> <Td> 3,285 </Td> <Td> 10,778 </Td> <Td> 48 ° 46 ′ 38" N 121 ° 48 ′ 48" W ﻿ / ﻿ 48.77722 ° N 121.81333 ° W ﻿ / 48.77722; - 121.81333 ﻿ (Mount Baker) </Td> <Td> 1880 </Td> </Tr> <Tr> <Td> Glacier Peak </Td> <Td> 3,213 </Td> <Td> 10,541 </Td> <Td> 48 ° 06 ′ 45" N 121 ° 06 ′ 50" W ﻿ / ﻿ 48.11250 ° N 121.11389 ° W ﻿ / 48.11250; - 121.11389 ﻿ (Glacier Peak) </Td> <Td> ~ 17th - 18th Century </Td> </Tr>

Where do most volcanoes occur in the united states