Both teams played in the United States Hockey League.
Best of 5
- Sault Ste Marie 7 Thunder Bay 4
- Sault Ste Marie 6 Thunder Bay 5
- Thunder Bay 4 Sault Ste Marie 1
- Thunder Bay 7 Sault Ste Marie 4
- Thunder Bay 6 Sault Ste Marie 1
Thunder Bay Twins beat Sault Ste Marie Canadians 3 games to 2.
Thunder Bay Twins advanced to the 1970-71 Eastern Canada Allan Cup Playoffs.
List of Northern Ontario Senior Playoffs
Ad blocker interference detected!
Wikia is a free-to-use site that makes money from advertising. We have a modified experience for viewers using ad blockers
Wikia is not accessible if you’ve made further modifications. Remove the custom ad blocker rule(s) and the page will load as expected.