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Subjects
- Mines and mineral resources -- Michigan.[remove]5
- Conservation of natural resources -- Michigan.2
- Fishing -- Michigan.2
- Geology -- Michigan.2
- Indians of North America -- Michigan.2
- Land use -- Michigan.2
- Business enterprises -- Michigan -- Saginaw.1
- Business records.1
- Camping.1
- Conservation of material resources -- Michigan.1
- Copper.1
- Elections -- Michigan -- 1936.1
- Energy conservation -- Michigan.1
- Environmental protection -- Michigan.1
- Fish.1
- Fishes -- Michigan.1
- Fishing.1
- Forests and forestry -- Michigan.1
- Geology -- Maine.1
- Grayling fishing.1