Iron ore mining
color 1944
:07.25  128-1172421

Loading iron ore in to train cars
color 1944
:03.21  128-173222

Loading iron ore
color 1944
:04.27  128-1175129

Loading iron ore
color 1944
:03.  128-1175629

Tug boast pushing freighter
color 1944
:03.28  128-1180116

On the Great Lakes
color 1944
:04.01 128-1181119

Digging ore
color 1950
:03.03  179-31902
Mining,

Loading ore at dockside
color 1950
:04.09  179-63111

Iron mine
color 1950
:02.25  179-75016

Copper mine
color 1950
:03.11  179-74424