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Topic
- Izaak Walton League of America 38
- Rivers--Oregon 12
- Lectures and lecturing 10
- Water--Pollution 10
- Conservation of natural resources 6
- Dams 5
- Forests and forestry 3
- Oregon Cavemen Inc. 3
- Portland Chamber of Commerce (Or.) 3
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Region
- Columbia River >> Clatsop County >> Oregon >> United States 7
- Chicago >> Cook County >> Illinois >> United States 3
- Portland >> Washington County >> Oregon >> United States 3
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- Oregon >> United States 2
- Willamette River >> Multnomah County >> Oregon >> United States 2
- Bonneville Dam >> Multnomah County >> Oregon >> United States 1
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- Fremont National Forest >> Lake County >> Oregon >> United States 1
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Collection
- OSU Special Collections & Archives Research Center 38
- Reuniting Finley and Bohlman 38
Decade
- 1930-1939 38