Stack-unit mapping of geologic materials in Illinois to a depth of 15 meters
By: Richard C. Berg and John P. Kempton
Contributors: Kempton, John P. (John Paul); Illinois State Geological Survey
Series: Circular / Illinois State Geological Survey -- 542; Circular (Illinois State Geological Survey) -- 542.
Publisher: Illinois State Geological Survey
Published: 1988
Place of publication: Champaign, Ill
Language: eng
Number of pages: 23
Subjects: Geological mapping; Geology
Notes: Four maps on folded sheets in pocket.

Includes bibliographical references (p. 21-22).