where does the columbia river start and finish
Columbia River The Columbia River is the largest river in the Pacific Northwest region of North America.[9] The river rises in the Rocky Mountains of British Columbia, Canada. It flows northwest and then south into the US state of Washington, then turns west to form most of the border between Washington and the state of Oregon before emptying into the Pacific Ocean. The river is 1,243 miles (2,000Â km) long, and its largest tributary is the Snake River. Its drainage basin is roughly the size of France and extends into seven US states and a Canadian province. The fourth-largest river in the United States by volume, the Columbia has the greatest flow of any North American river entering the Pacific.
Chicago River The Chicago River is a system of rivers and canals with a combined length of 156 miles (251Â km)[1] that runs through the city of Chicago, including its center (the Chicago Loop).[2] Though not especially long, the river is notable for being a reason why Chicago became an important location, with the related Chicago Portage being a link between the Great Lakes and the Mississippi Valley waterways and eventually the Gulf of Mexico.