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Subjects
- Tourism -- Michigan.[remove]3
- Astronomy.1
- Boats -- Alaska.1
- Churches -- Michigan.1
- Copper mines and mining -- Michigan -- Upper Peninsula.1
- Mining engineers -- Michigan -- Biography.1
- Mining.1
- Mountains.1
- National parks & reserves -- Arizona.1
- National parks & reserves -- California.1
- National parks & reserves -- Utah.1
- National parks and reserves -- United States.1
- Nature -- Michigan.1
- Road construction -- Michigan.1
- Sleds & sleighs -- Alaska.1
- Transportation -- Michigan.1