<Table> <Tr> <Th_colspan="2"> Wizard Island </Th> </Tr> <Tr> <Td_colspan="2"> Wizard Island viewed from the west rim of the caldera . </Td> </Tr> <Tr> <Th_colspan="2"> Highest point </Th> </Tr> <Tr> <Th> Elevation </Th> <Td> 6,933 ft (2,113 m) </Td> </Tr> <Tr> <Th> Prominence </Th> <Td> 755 ft (230 m) (varies with water level) </Td> </Tr> <Tr> <Th> Coordinates </Th> <Td> 42 ° 56 ′ 19" N 122 ° 08 ′ 44" W ﻿ / ﻿ 42.9387395 ° N 122.1455841 ° W ﻿ / 42.9387395; - 122.1455841 Coordinates: 42 ° 56 ′ 19" N 122 ° 08 ′ 44" W ﻿ / ﻿ 42.9387395 ° N 122.1455841 ° W ﻿ / 42.9387395; - 122.1455841 </Td> </Tr> <Tr> <Th_colspan="2"> Geography </Th> </Tr> <Tr> <Th> Location </Th> <Td> Klamath County, Oregon, U.S. </Td> </Tr> <Tr> <Th> Parent range </Th> <Td> Cascades </Td> </Tr> <Tr> <Th> Topo map </Th> <Td> USGS Crater Lake West </Td> </Tr> <Tr> <Th_colspan="2"> Geology </Th> </Tr> <Tr> <Th> Mountain type </Th> <Td> Cinder cone </Td> </Tr> <Tr> <Th> Volcanic arc </Th> <Td> Cascade Volcanic Arc </Td> </Tr> <Tr> <Th> Last eruption </Th> <Td> About 4600 BC </Td> </Tr> <Tr> <Th_colspan="2"> Climbing </Th> </Tr> <Tr> <Th> Easiest route </Th> <Td> Trail with boat access </Td> </Tr> </Table> <Tr> <Th_colspan="2"> Wizard Island </Th> </Tr>

When was the last time wizard island erupted