UC Berkeley GeoData Repository

Start Over Creator Hansen, Michael C. Publisher Ohio. Division of Geological Survey Bounding Box -180 -89.81531 180 89.456192

1. Guide to the geology along U.S. Route 23 between Columbus and Portsmouth

1998. Hansen, Michael C. Text, satellite image of southern Ohio and 2 block diagrams. Panel title. Scale not given. by Michael C. Hansen. "Publication date: 8/98.". Ohio. Division of Geological Survey.

2. The ice age in Ohio

1998. Hansen, Michael C. Includes text and ill. by Michael Hansen. "Publication date: 9/98." Revised edition 1997. Scale approximately 1:2,100,000. Text, insets and ill. on... Ohio. Division of Geological Survey.

3. Guide to the geology along U.S. Route 23 between Columbus and Portsmouth

1993. Hansen, Michael C. Scale not given. Panel title. by Michael C. Hansen. Text, satellite image of southern Ohio and 2 block diagrams. "Publication date: 8/93.". Ohio. Division of Geological Survey.