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- Railroads--Canada--Maps4
- Mines and mineral resources--British Columbia--Cariboo (Regional district)--Maps2
- Geomagnetism--Ontario--Belmont (Township)--Maps1
- Geomagnetism--Ontario--Peterborough (County)--Maps1
- Iron mines and mining--Ontario--Belmont (Township)--Maps1
- Iron mines and mining--Ontario--Peterborough (County)--Maps1
- Iron ores--Ontario--Belmont (Township)--Maps1
- Iron ores--Ontario--Peterborough (County)--Maps1
- Natural resources--Ontario--Algoma (District)--Maps1
- Wheat--Canada--Maps1
- Wheat--Prairie Provinces--Maps1
