The league featured clubs representing cities in Michigan, Minnesota, North Dakota, and Manitoba.
On March 18, 1906, the Copper Country Soo League and Northern League merged to form the NCCL.
The Grand Forks and Hancock clubs disbanded midway through the first season on July 29, 1906, and the entire league folded on September 2, 1907.
Price The league, which became a C league on May 25, was formed as a merger between the Northern and Copper Country Soo Leagues.Hancock and Grand Forks disbanded July 29.
The Encyclopedia of Minor League Baseball: Second and Third Editions.