- Creator:
- Geological Survey (U.S.)
- Contributor:
- Alden, William C. (William Clinton), 1871-1959; Lees, James Henry, 1875-
- Created:
- 1918
- Contributed By:
- University of Minnesota Libraries, John R. Borchert Map Library.
- Page Count:
- 2
- Last Updated:
- 2021-08-13
- Creator:
- Geological Survey (U.S.)
- Contributor:
- Brooks, Alfred H. (Alfred Hulse), 1871-1924; Witherspoon, D. C
- Created:
- 1918
- Contributed By:
- University of Minnesota Libraries, John R. Borchert Map Library.
- Last Updated:
- 2021-10-04
