This is a draft (I'll probably edit it in place) of what I'm working on to post to CFB before /u/hythloday1 puts up her long study. Please let me know if things don't make sense or I need to explain things in better ways.
Review and History. The Port of Minneapolis is the northernmost port on the Mississippi River System. Located near the convergence of the Mississippi and the Minnesota Rivers, the Port of Minneapolis is about 17 nautical miles upriver (20 kilometers or 12 miles northwest by air) of its sister city, St. Paul. Seat of Hennepin County, Minnesota, the Port of Minneapolis and St. Paul form the Twin Cities conurbation.
Formerly known as Madras, the Port of Chennai is called by many the Gateway to South India.. Located on India's southern Coromandel Coast off the Bay of Bengal, the Port of Chennai is about 565 kilometers northeast of the Port of Cochin and some one thousand kilometers southeast of the Port of Mumbai.