The shipment of stone and aggregate products on the Great Lakes
has grown dramatically in the past decade, rivalling the movement
of other bulk products like coal and ore.
M/V Algosoo, Minnesota Aggregates, Duluth, Minnesota
July 3, 2002, Image 02-0084
The Kaye Barker unloads limestone into the hopper at Duluth's
Canadian National ore docks. The limestone is shipped to taconite
producing plants on Minnesota's iron range to make flux pellets.
Str. Kaye E. Barker, D. M. & I.R., Duluth, Minnesota
July 4, 2003, Image 03-9790
Port Dolomite, near Cedarville, Michigan, is one of several loading
ports in Michigan's Upper Peninsula. The Algorail is seen here
completing loading at the dock.
M/V Algorail, Port Dolomite, Cedarville, Michigan
July 12, 2003, Image 03-9870
The American Mariner unloads aggregate for road construction
at Duluth's Northland Pier. Stone cargo is usually carried in smaller
vessels, and is often a back haul to ports like Duluth.
M/V American Mariner, Northland Bituminous, Duluth, Minnesota
June 7, 2003, Image 03-9222
The Courtney Burton unloads limestone from Stoneport at Superior's
Cutler Magner dock. The limestone is used in the manufacturing of
lime at the Superior facility.
Str. Courtney Burton, Cutler Magner Dock, Superior, Wisconsin
August 4, 2002, Image 02-1057