What deep water port is the farthest from the sea?

The Baton Rouge Port is the farthest inland on the Mississippi River.

http://brgov.com/dept/planning/facts.htm

(scroll down to "Port" section on link)

The Port of Quebec is the deep-water connection to the industrial and agricultural heartland of North America. The Port of Quebec is closer to Northern Europe than ports on the east coast of the United States, yet allows ocean-going vessels to penetrate 1,400 kilometres inland from the Atlantic seaboard. It is the farthest inland deep-water port leading to one of the world’s most important trade routes: the Great Lakes/St. Lawrence Seaway System.


http://www.acpa-ports.net/industry/cpafacts.html

But the Port of Quebec is not the furthest deep water port from the sea in the world, it is only for the Great Lakes/St. Lawrence Seaway System.

Please keep looking for the answer to this stumper.