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Creator
- Michler, N. (Nathaniel), 1827-1881 2
- United States. War Department 2
Topic
- Bodies of water 2
- Northwest, Pacific 2
- River channels 2
- River engineering 2
- River surveys 2
- Rivers 2
- United States. Congress--Records and correspondence 2
- Harbors 1
- Rapids 1
License
- Creative Commons: Public Domain Mark 1.0 2