Spar Mountain sandstone in Cooks Mills area, Coles and Douglas Counties, Illinois
Series: Illinois State Geological Survey. Circular; 267; Circular (Illinois State Geological Survey) ;; 267.
Publisher: Illinois State Geological Survey
Published: 1959
Place of publication: Urbana
Language: eng
Number of pages: 24
Subjects: Sandstone.; Geology -- Illinois -- Coles County.; Geology -- Illinois -- Douglas County.
Notes: Bibliography: p. 23-24.