This tug was built in 1962 by Davie Shipbuilding as the Foundation Vigour for Foundation Maritime. In 1973 she was sold to Eastern Canada Towing of Halifax, NS and renamed Point Vigour the following year. She was sold to McKeil Marine in 2006. In 2007 she was renamed Molly M I. She was transferred to Nadro Marine in 2012, and retained her name. She returned to parent company McKeil in 2018 when it absorbed the Nadro fleet.
Molly M I works on various transportation and towing projects for McKeil around the Great Lakes and St. Lawrence Seaway.
- Type: Single Screw Tugboat
- Year Built: 1962
- Builder: Davie Shipbuilding, Lauzon, QC
- Hull No.: 633
- Engines: 1 F-M 38D
- Horsepower: 1,000 bhp
- Length: 98′ 06″
- Breadth: 27′ 10″
- Depth: 12′ 02″
- Port of Registry: Halifax, NS