Results of spirit leveling in Minnesota, 1897 to 1914, inclusive
By: R.B. Marshall, chief geographer; work done in cooperation with the state of Minnesota from 1909 to 1914, inclusive; George A. Ralph, chief engineer of State Drainage Commission.
Contributors: Minnesota. State Drainage Commission.
Series: U.S. Geological survey. Bulletin 560
Publisher: Govt. Print. Off.
Published: 1915
Place of publication: Washington
Language: eng
Number of pages: 190
Subjects: Minnesota -- Altitudes.
Notes: Includes index.