Topic
- Droughts 3
- Grain 3
- Grazing 3
- Hydrology 3
- Politics and government 3
- Technology 3
- Turkeys 3
- Watersheds 3
- Weights and measures 3
- Commerce 2
- Desertification 2
- Finance 2
- Groundwater 2
- Holstein-Friesian cattle 2
- Incubators 2
- Oregon State Fair 2
- Population 2
- Railroad cars 2
- Ranches 2
- Rangelands 2
