The Hornsby district of low-sulfur Herrin coal in central Illinois (Christian, Macoupin, Montgomery, and Sangamon counties)
By: by W. John Nelson with contributions by Philip J. DeMaris and Robert A. Bauer
Contributors: DeMaris, Philip J.; Bauer, Robert A.; Illinois State Geological Survey
Series: Circular / Illinois State Geological Survey -- 540; Circular (Illinois State Geological Survey) -- 540.
Publisher: Illinois State Geological Survey
Published: 1987
Place of publication: Champaign, Ill
Language: eng
Number of pages: 40
Subjects: Kohlengeologie; Coal; Geology
Notes: Map on 1 folded leaf in pocket.

Includes errata slip.

Includes bibliographical references (p. 39-40).