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Creator
- Oregonian (Firm) 200
- Oregon Journal (Firm) 86
- Portland Chamber of Commerce (Or.) 13
- News-Telegram (Portland, Or.) 9
- University of California, Berkeley 7
- Finley, William L. (William Lovell), 1876-1953 6
- Oregon City Enterprise Courier (Oregon City, Or.) 5
- Statesman Journal 5
- Muskegon Chronicle 4
- Nature 4
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Topic
- Lectures and lecturing 102
- Rivers--Oregon 59
- Water--Pollution 34
- Dams 32
- Wildlife refuges 21
- Salmon 20
- Birds--Conservation 17
- Izaak Walton League of America 16
- Fishes--Conservation 12
- Hunting 7
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Region
- Willamette River >> Multnomah County >> Oregon >> United States 30
- Columbia River >> Clatsop County >> Oregon >> United States 25
- Malheur National Wildlife Refuge >> Harney County >> Oregon >> United States 16
- Portland >> Washington County >> Oregon >> United States 16
- Alaska >> United States 10
- Lower Klamath National Wildlife Refuge >> Siskiyou County >> California >> United States 7
- Santiam River >> Marion County >> Oregon >> United States 5
- Bonneville Dam >> Multnomah County >> Oregon >> United States 4
- Tule Lake National Wildlife Refuge >> Siskiyou County >> California >> United States 4
- Clear Lake National Wildlife Refuge >> Modoc County >> California >> United States 3
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Rights
- In Copyright 200
Decade
- 1930-1939 200
