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Author
- Geological Survey (U.S.)8
- Darton, Nelson Horatio, 1865-19482
- Diller, J. S. (Joseph Silas), 1850-19281
- Fisher, Cassius A. (Cassius Asa), 1872-19301
- Geological Survey (U.S.), cartographer1
- Geological Survey of Canada1
- Miller, Benjamin L. (Benjamin LeRoy), 1874-19441
- Shattuck, George Burbank, 1869-19341
- Taff, Joseph A. (Joseph Alexander), b. 18621
