Mailing Address:
Ohio Department of Natural Resources
Division of Geological Survey
2045 Morse Rd., Bldg. C-1
Columbus, OH 43229-6693

Telephone: (614) 265-6576
Fax: (614) 447-1918
E-Mail: geo.survey@dnr.state.oh.us

Earthquake Contact:
Michael C. Hansen
OhioSeis Network Coordinator
(740) 548-5979
ohioseis@dnr.state.oh.us

Reports of Progress

SECOND ORGANIZATION, 1869-1889: Report of Progress in 1869. 164 p., figs., maps, 1870. Another edition, 176 p., figs., maps, 1871. Out of print.; Report of Progress in 1870. 568 p., figs., maps, 1871. Out of print.