This map shows the ports of the Great Lakes and St. Lawrence River system. Information about a port's location and name are provided for each port.
Public and private sector organizations make investments in the Great Lakes to improve and sustain their use. Federal money is spent to dredge harbors and channels, break up ice, and maintain critical locks and other infrastructure, ensuring the maritime system functions smoothly. States and provinces develop waterfronts for greater access to maritime shipping and boost economic development. Private organizations use resources to improve their cargo capacity and efficiency through ship and onshore investments.