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Pit Mine
Cornell University Library Digital Collections
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Duluth, Missabe, and Iron Range Railway
11
Industries (organizations)
11
Iron Ore
11
Locomotives
4
Mines and mineral resources
11
Pit Mine
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11
Railroad cars
5
Railroad crossings
1
Railroad switches
1
Railroad tracks
10
Railroads--Employees
1
Railroads--Equipment and supplies
1
Railroads--Freight
4
