Port of Portland

The Port of Portland is on the waterways listed below.

Waterway Waterway System
Willamette River Columbia River System

While many waterways are not part of a larger waterway system, there are a some that belong to two waterway systems. For example, the Tennessee River is a natural river tributary in the Mississippi River System while also being connected to the Mobile Bay River System via the Tennessee-Tombigbee Waterway.

Maps of United States:  small   large