This is the 1920-21 season of the St Maurice Valley League:
There were only two teams entered. They played a best of five home-and-home series. When the two teams were tied after four games, the fifth game was played on neutral ice in Quebec City.
Best of 5
- Grand'Mere 3 La Tuque 2
- La Tuque 2 Grand'Mere 1
- Grand'Mere 2 La Tuque 1
- La Tuque 2 Grand'Mere 0
- La Tuque 3 Grand'Mere 2
La Tuque beat Grand'Mere 3 wins to 2.
La Tuque advanced to the 1920-21 Quebec Senior Playoffs.