High-level glacial outwash in the driftless area of northwestern Illinois
By: [by] H. B. Willman [and] John C. Frye.
Contributors: Frye, John Chapman, 1912- joint author.
Series: Illinois. State Geological Survey. Circular; 440; Circular Illinois State Geological Survey) ;; 440.
Publisher: State of Illinois, Dept. of Registration and Education
Published: 1969
Place of publication: Urbana
Language: eng
Number of pages: 21
Subjects: Glacial epoch -- Illinois -- Jo Daviess County
Notes: Bibliography:p. 16-18.
Cover title.