Charts. Umpqua River, Oreg., entrance bar to Reedsport, surveys to 1928, additional topography from other sources, survey by U. S. Engineers to Oct. 1931; chart 6004. Scale 1:20,000.
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Umpqua River, Oreg., entrance bar to Reedsport, surveys to 1928, additional topography from other sources, survey by U. S. Engineers to Oct. 1931; chart 6004. Scale 1:20,000.
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Charts. Umpqua River, Oreg., entrance bar to Reedsport, surveys to 1928, additional topography from other sources, survey by U. S. Engineers to Oct. 1931; chart 6004. Scale 1:20,000.