Western Waters Digital Library
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Topic
- Government publications 26
- River engineering 16
- Rivers 16
- Bodies of water 15
- United States. Congress--Records and correspondence 15
- River surveys 14
- Northwest, Pacific 10
- River channels 10
- Harbors 8
- Canals 6
- Rapids 5
- West (U.S.) 5
- Stream conservation 4
- United States--Armed Forces--Organization--Charts, diagrams, etc 3