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Subject
- Forests[remove]7
- Mountains5
- Trees5
- Hills4
- Allegheny Mountains3
- Horseshoe Curve National Historic Landmark (Pa.)3
- Meadows3
- Pennsylvania Railroad3
- Railroads3
- Boundaries2
- Cities & towns2
- Croplands2
- Farms2
- Lakes & ponds2
- Railroad freight cars2
- Reservoirs2
- Rivers2
- Susquehanna River, West Branch (Pa.)2
- Valleys2
- Bald Eagle Mountain (Pa.)1