McDougall Duluth Shipbuilding Company

The shipyard was located on St. Louis River Estuary at western part of Lake Superior.

Once built the ships can travel to the Atlantic Ocean through the Great Lakes and the Saint Lawrence Seaway.

[2][3] In 1890 iron ore was discovered on the Mesabi Range, this turned Duluth into a major shipping port.

With the success of the whaleback barge, Alexander McDougall opened the first shipyard on Lake Superior, (were Fraser Shipyards is now) in December 1891, that built whalebacks, like the Model 101, and steamships used for bulk cargo and passenger ships on the Great Lakes.

The new McDougall Duluth Shipyard was 6 miles west of his former yard on Lake Superior.

For World War II the yard built fully outfitted warships.

[38][39][40][41][42][43][44] Some of Walter Butler Shipbuilders Duluth ships:[45] C1-M-AV1 cargo ships, 2239 tons, 3,805 DWT:[46] The current site is the Spirit Lake Marina, also called West Duluth Marina, which has docks and berths for recreational boats on the river and lake.