Results of spirit leveling in Iowa 1896 to 1909, inclusive
By: R.B. Marshall chief geographer.  Work done in cooperation with the state of Iowa from 1907 to 1909, inclusive.
Series: U.S. Geological survey. Bulletin 460
Publisher: Govt. Print. Off.
Published: 1911
Place of publication: Washington
Language: eng
Number of pages: 32
Subjects: Iowa -- Altitudes.
Notes: Issued also as House doc. no. 1433, 61st Cong., 3d sess.
Includes index.