Catching the Avenger IV and her Barge

As I arrived in Port Huron, I noticed a tug coming down.

 The Avenger IV is owned by Purvis Marine out of Sault Ste Marie, Ontario.    She was built in 1962 by Cochrane & Sons in Yorkshire, England.

 She was pushing a barge that is also owned by Purvis Marine.

 I'm not sure what they were carrying though.

 Here she is framed by the Blue Water Bridge.

And she continues on her way to Hamilton, Ontario.