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  • All fields: Portsmouth
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Display: 20

    • B.O. Plenty

    • B.O. Plenty

    • Portsmouth mining operation, featuring shovel # 54-B loading truck # 251

    • Crosby City, MN; Portsmouth Mine; Iron mining; Machinery; Mining equipment; Dump trucks; Shovels; Strip mining;
    • Photo Collection
    • B.O. Plenty

    • B.O. Plenty

    • Portsmouth mining operation, featuring shovel # 54-B loading truck # 251

    • Crosby, MN; Portsmouth Mine; Iron mining; Strip mining; Machinery; Mining equipment; Shovel; Dump truck;
    • Photo Collection
    • Butler Brothers and Hanna Mining Company Records Finding Aid

    • Butler Brothers and Hanna Mining Company Records Finding Aid

    • Document describing a collection of records held in the Minnesota Discovery Center Archives documenting the activity of the Butler Brothers and Hanna Mining Company.

    • Andreas, B.M.; Bedard, Earl W.; Bemis, John E.; Butler, Cooley, 1868-1965.; Butler, Emmett, 1870-1955.; Butler, Hazen; Butler, John 1861-1926; Butler, Patrick, 1900-1990; Butler, Pierce, 1868-1939; Butler, Walter, 1858-1933; Butler, William,...
    • Manuscripts Collection
    • Portsmouth

    • Portsmouth

    • Portsmouth open pit mine, featuring vehicles, equipment, and facilities

    • Crosby, MN; Portsmouth Mine; Iron mining; Strip mining; Machinery; Mining equipment; Dump trucks; Facilities; Mine buildings;
    • Photo Collection
    • Portsmouth

    • Portsmouth

    • Portsmouth mining operation in winter, featuring blasting dust cloud

    • Crosby, MN; Portsmouth Mine; Iron mining; Strip mining; Machinery; Mining equipment; Shovels; Drills (Machinery); Blasting;
    • Photo Collection
    • Portsmouth

    • Portsmouth

    • Portsmouth open pit mine, featuring vehicles, equipment, and facilities

    • Wolford, MN; Gloria- Zeno Mine; Iron mining; Strip mining; Mine buildings; Facilities; Machinery; Mining equipment; Shovels;
    • Photo Collection
    • Portsmouth

    • Portsmouth

    • Portsmouth open pit mine, featuring equipment and distant facilities

    • Crosby, MN; Portsmouth Mine; Iron mining; Strip mining; Facilities; Mine buildings; Machinery; Mining equipment;
    • Photo Collection
    • Portsmouth

    • Portsmouth

    • Portsmouth mine, featuring shovels and dump trucks # 260 and 252

    • Crosby, MN; Portsmouth Mine; Iron mining; Strip mining; Machinery; Mining equipment; Shovels; Dump trucks; Drills (Machinery);
    • Photo Collection
    • Portsmouth conveyor

    • Portsmouth conveyor

    • Portsmouth mining facility in winter, featuring conveyors

    • Crosby, MN; Portsmouth Mine; Iron mining; Facilities; Mine buildings; Construction equipment; Construction; Conveying systems; Building materials;
    • Photo Collection
    • Portsmouth Extension

    • Portsmouth Extension

    • Portsmouth open pit mine, featuring a shovel loading a truck

    • Crosby, MN; Portsmouth Mine; Iron mining; Strip mining; Machinery; Mining equipment; Shovels; Dump trucks; Drills (Machinery);
    • Photo Collection
    • Portsmouth Extension

    • Portsmouth Extension

    • Portsmouth open pit mine, featuring a shovel loading a truck

    • Crosby, MN; Portsmouth Mine; Iron mining; Strip mining; Machinery; Mining equipment; Shovels; Dump trucks; Drills (Machinery);
    • Photo Collection
    • Portsmouth Mine

    • Portsmouth Mine

    • Arial view of iron mining facility, featuring railroad cars and dump trucks

    • Brainerd, MN; Portsmouth Mine; Robert (Roberts) Mine; Iron mining; Strip mining; Mine buildings; Facilities; Mining equipment; Conveying systems;
    • Photo Collection
    • Portsmouth Mine in winter

    • Portsmouth Mine in winter

    • Portsmouth Mine in winter, featuring a shovel loading dump trucks

    • Crosby, MN; Portsmouth Mine; Iron mining; Machinery; Mining equipment; Drills (Machinery); Shovels; Dump trucks; Strip mining;
    • Photo Collection
    • Portsmouth Open Pit Mine

    • Portsmouth Open Pit Mine

    • Open pit mine, featuring equipment and facilities

    • Crosby, MN; Portsmouth Mine; Iron mining; Facilities; Strip mining; Dump trucks; Drills (Machinery); Mine buildings; Shovels; Machinery;
    • Photo Collection
    • Portsmouth Open Pit Mine

    • Portsmouth Open Pit Mine

    • Open pit mining operations, featuring equipment, trucks, and facilities

    • Crosby, MN; Portsmouth Mine; Iron mining; Facilities; Strip mining; Dump trucks; Mine buildings; Shovels; Machinery; Conveying systems;
    • Photo Collection

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