<Table> <Tr> <Td_colspan="2"> Willamette River </Td> </Tr> <Tr> <Td_colspan="2"> The Willamette passing through Downtown Portland in a photo from the 1980s </Td> </Tr> <Tr> <Td_colspan="2"> Name origin: From a Clackamas Native American village name </Td> </Tr> <Tr> <Td_colspan="2"> </Td> </Tr> <Tr> <Th> Country </Th> <Td> United States </Td> </Tr> <Tr> <Th> State </Th> <Td> Oregon </Td> </Tr> <Tr> <Td_colspan="2"> </Td> </Tr> <Tr> <Td_colspan="2"> Tributaries </Td> </Tr> <Tr> <Td> - left </Td> <Td> Coast Fork Willamette River, Long Tom River, Marys River, Luckiamute River, Yamhill River, Tualatin River </Td> </Tr> <Tr> <Td> - right </Td> <Td> Middle Fork Willamette River, McKenzie River, Calapooia River, Santiam River, Molalla River, Clackamas River </Td> </Tr> <Tr> <Th> Cities </Th> <Td> Eugene, OR, Corvallis, OR, Albany, OR, Salem, OR, Newberg, OR, Wilsonville, OR, Portland, OR </Td> </Tr> <Tr> <Td_colspan="2"> </Td> </Tr> <Tr> <Td_colspan="2"> </Td> </Tr> <Tr> <Th> Source </Th> <Td> Confluence of Middle Fork Willamette River and Coast Fork Willamette River </Td> </Tr> <Tr> <Td> - location </Td> <Td> near Eugene, Lane County, Oregon </Td> </Tr> <Tr> <Td> - elevation </Td> <Td> 438 ft (134 m) </Td> </Tr> <Tr> <Td> - coordinates </Td> <Td> 44 ° 01 ′ 23" N 123 ° 01 ′ 25" W ﻿ / ﻿ 44.02306 ° N 123.02361 ° W ﻿ / 44.02306; - 123.02361 </Td> </Tr> <Tr> <Th> Mouth </Th> <Td> Columbia River </Td> </Tr> <Tr> <Td> - location </Td> <Td> Portland, Multnomah County, Oregon </Td> </Tr> <Tr> <Td> - elevation </Td> <Td> 10 ft (3 m) </Td> </Tr> <Tr> <Td> - coordinates </Td> <Td> 45 ° 39 ′ 10" N 122 ° 45 ′ 53" W ﻿ / ﻿ 45.65278 ° N 122.76472 ° W ﻿ / 45.65278; - 122.76472 Coordinates: 45 ° 39 ′ 10" N 122 ° 45 ′ 53" W ﻿ / ﻿ 45.65278 ° N 122.76472 ° W ﻿ / 45.65278; - 122.76472 </Td> </Tr> <Tr> <Td_colspan="2"> </Td> </Tr> <Tr> <Th> Length </Th> <Td> 187 mi (301 km) </Td> </Tr> <Tr> <Th> Basin </Th> <Td> 11,478 sq mi (29,730 km) </Td> </Tr> <Tr> <Th> Discharge </Th> <Td> for Morrison Bridge, Portland, 12.8 miles (20.6 km) from mouth </Td> </Tr> <Tr> <Td> - average </Td> <Td> 33,010 cu ft / s (900 m / s) </Td> </Tr> <Tr> <Td> - max </Td> <Td> 420,000 cu ft / s (11,900 m / s) </Td> </Tr> <Tr> <Td> - min </Td> <Td> 4,200 cu ft / s (100 m / s) </Td> </Tr> <Tr> <Td_colspan="2"> </Td> </Tr> <Tr> <Td_colspan="2"> A map of the Willamette River, its drainage basin, major tributaries and major cities </Td> </Tr> <Tr> <Td_colspan="2"> Wikimedia Commons: Willamette River </Td> </Tr> <Tr> <Td_colspan="2"> </Td> </Tr> </Table> <Tr> <Td_colspan="2"> Willamette River </Td> </Tr>

Where is the headwaters of the willamette river