<Tr> <Td> Mount Baker </Td> <Td> 10,781 </Td> <Td> 3,286 </Td> <Td> Washington </Td> <Td> 48 ° 46 ′ 38" N 121 ° 48 ′ 48" W ﻿ / ﻿ 48.7773426 ° N 121.8132008 ° W ﻿ / 48.7773426; - 121.8132008 </Td> <Td> September to November 1880 </Td> </Tr> <Tr> <Td> Glacier Peak </Td> <Td> 10,541 </Td> <Td> 3,213 </Td> <Td> Washington </Td> <Td> 48 ° 06 ′ 45" N 121 ° 06 ′ 50" W ﻿ / ﻿ 48.112513950 ° N 121.113804642 ° W ﻿ / 48.112513950; - 121.113804642 </Td> <Td> 1700 ± 100 years </Td> </Tr> <Tr> <Td> Mount Jefferson </Td> <Td> 10,497 </Td> <Td> 3,199 </Td> <Td> Oregon </Td> <Td> 44 ° 40 ′ 27" N 121 ° 47 ′ 58" W ﻿ / ﻿ 44.674300600 ° N 121.799573611 ° W ﻿ / 44.674300600; - 121.799573611 </Td> <Td> About 950 AD </Td> </Tr> <Tr> <Td> Lassen Peak </Td> <Td> 10,457 </Td> <Td> 3,187 </Td> <Td> California </Td> <Td> 40 ° 29 ′ 17" N 121 ° 30 ′ 18" W ﻿ / ﻿ 40.4881731 ° N 121.5050078 ° W ﻿ / 40.4881731; - 121.5050078 </Td> <Td> 1914 to 1917 </Td> </Tr>

Which state in the pacific northwest had volcanic activity in the last 20 years