Great Lakes Gas Transmission System

The Great Lakes Gas Transmission pipeline connects with the Canadian Mainline at Emerson, Manitoba, and links natural gas supply from Western Canada to major markets in Minnesota, Wisconsin, Michigan and central Canada through a 3,404-kilometre (2,115-mile) pipe.

  • Ownership: 53.6 per cent ownership by TransCanada and 46.4 per cent ownership by TC PipeLines, LP (for an effective ownership interest of 71.3 per cent based on direct ownership, plus TransCanada’s 38.2 per cent ownership in TC Pipelines, LP).
  • Key Market Interconnects:Manitoba at Emerson with TransCanada • Minnesota at Carlton with Northern Natural • Michigan at Fortune Lake/Crystal Falls with ANR • Michigan at Farwell with ANR • Michigan at Chippewa with Consumers Energy • Michigan at Belle River with Michigan Consolidated • Ontario at St. Clair with TransCanada
  • 2010 Natural Gas Throughput: 804 Bcf

For more information, visit the Great Lakes Gas Transmission web page:


Further Information

System map.