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- Oregon Journal (Firm), 39 results
- Oregonian (Firm), 29 results
- Finley, William L. (William Lovell), 1876-1953, 12 results
- Oregon City Enterprise Courier (Oregon City, Or.), 9 results
- Portland Chamber of Commerce (Or.), 6 results
- Averill, Edgar F., 1881-1955, 5 results
- Izaak Walton League of America, 5 results
- Statesman Journal, 5 results
- The Register-Guard, 3 results
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- United States, 140 results
- Oregon, 138 results
- Willamette River (Or.), 98 results
- Multnomah County (Or.), 30 results
- Santiam River (Or.), 21 results
- Portland (Or.), 18 results
- Bonneville Dam (Or. and Wash.), 12 results
- McKenzie River (Or.), 11 results
- Linn County (Or.), 8 results
- Sweet Home (Or.), 7 results
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- Rivers--Oregon, 174 results
- Dams, 101 results
- Water-Pollution, 56 results
- Salmon, 39 results
- Lectures and lecturing, 36 results
- Fishes-Conservation, 33 results
- Flood control, 32 results
- Izaak Walton League of America, 16 results
- Inland water transportation, 15 results
- Sewage disposal plants, 14 results