Preliminary sub-trenton data sheets
Series: Information circular / Ohio. Division of Geological Survey -- no. 28; Information circular (Ohio. Division of Geological Survey) -- no. 28
Publisher: The Department of Natural Resources, Division of Geological Survey
Published: 1961
Place of publication: Columbus, Ohio
Language: eng
Number of pages: 20
Subjects: Geology -- Ohio -- Maps; Borings -- Ohio; Geology, Stratigraphic
Genres: Maps
Notes: Cover title