The Canadian-flagged 15,200-dwt Mississagi (built 1943) was carrying more than 17,000t of stone when the incident occurred.
Local media reports say salvors had to offload around 2,000t of cargo before the ship was in a position to be refloated.
The ship was transiting downbound the St Marys River from Bruce Mines, Ontario early on Wednesday when it ran aground in the Potagannissing Bay.
The
