71. Ore Train in Open Pit Mine Switching Locomotive and Slug Collection: U.S. President's Railroad Commission Photographs Set: Duluth, Missabe and Iron Range Railway: mining and shipping operations Location: Minnesota, United States Format: Image
72. Open Pit Mine and Ore Cars Collection: U.S. President's Railroad Commission Photographs Set: Duluth, Missabe and Iron Range Railway: mining and shipping operations Location: Minnesota, United States Format: Image
73. Open Pit Mine and Ore Cars Collection: U.S. President's Railroad Commission Photographs Set: Duluth, Missabe and Iron Range Railway: mining and shipping operations Location: Minnesota, United States Format: Image
74. Open Pit Mine Collection: U.S. President's Railroad Commission Photographs Set: Duluth, Missabe and Iron Range Railway: mining and shipping operations Location: Minnesota, United States Format: Image
75. DMIR Unit 159 with Gondola Collection: U.S. President's Railroad Commission Photographs Set: Duluth, Missabe and Iron Range Railway: mining and shipping operations Location: Minnesota, United States Format: Image
76. Ore Cars and Ore Dock Seen From Cab Collection: U.S. President's Railroad Commission Photographs Set: Duluth, Missabe and Iron Range Railway: mining and shipping operations Location: Minnesota, United States Format: Image
77. Track Speeder Collection: U.S. President's Railroad Commission Photographs Set: Duluth, Missabe and Iron Range Railway: mining and shipping operations Location: Minnesota, United States Format: Image
78. View of Ore Train from Engineer's Side Collection: U.S. President's Railroad Commission Photographs Set: Duluth, Missabe and Iron Range Railway: mining and shipping operations Location: Minnesota, United States Format: Image
79. Track Speeder Collection: U.S. President's Railroad Commission Photographs Set: Duluth, Missabe and Iron Range Railway: mining and shipping operations Location: Minnesota, United States Format: Image
80. Railroad Tracks and Grade Crossing Collection: U.S. President's Railroad Commission Photographs Set: Duluth, Missabe and Iron Range Railway: mining and shipping operations Location: Minnesota, United States Format: Image
