Pictures of the arrival and departure here:
  / duluthshipphotography  

The Walter J McCarthy Jr arrive Duluth to load 60,000 LT of Iron ore at the CN dock!
They arrived Duluth April 07, 2024 at 07:30
Departed April 08, 2024 for Conneaut OH to deliver the ore.

Info from the American Steamship site:

Originally built as the M/V Belle River, the vessel was renamed in 1990 to honor the former Chairman of the Detroit Edison Company, Walter J. McCarthy Jr.

Construction

The M/V Walter J. McCarthy Jr. was built by Bay Shipbuilding Corp at Sturgeon Bay, WI and entered service in 1977.

Equipment

The M/V Walter J. McCarthy Jr. is powered by four 3500 HP General Motors Electro Motive Division (EMD) diesel engines. The vessel uses a conveyor system below its cargo holds to transport cargo to a "loop conveyor" system that elevates the cargo to the massive deck-mounted boom conveyor. For maneuvering in port, the vessel is equipped with 1,500 HP bow and stern thrusters.

Service

The M/V Walter J. McCarthy Jr. transports low-sulfur western coal from Superior, Wisconsin to Detroit Edison's St. Clair and Monroe, Michigan power plants.

Length, Overall 1000'-0"
Beam 105'-0"
Depth 56'-0"
Midsummer Draft (MS) 34'- 3/4"
Deadweight Capacity at MS Draft 80,900 Gross Tons
Deadweight Capacity at 27'-6" 62,100 Gross Tons
Unloading Boom Conveyor Length 250'
Maximum Unloading Rate 10,000 Tons/Hour
Number of Cargo Holds 7
Number of Hatches 37
Shaft Horsepower 14,000
Year Built 1977
Number of Propellers 2