Staff by Subject Area
Chief: Larry H. Wickstrom
Main phone number: (614) 265-6576
General e-mail: geo.survey@dnr.state.oh.us
Click here for the Staff Directory
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| Abandoned Underground Mines & Mine Subsidence |
| Ernie R. Slucher |
Geologist |
ernie.slucher@dnr.state.oh.us |
(614) 265-6627 |
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| Bedrock Geology & Mapping |
| Mike P. Angle |
Mapping Group Supervisor |
mike.angle@dnr.state.oh.us |
(614) 265-6602 |
| Glenn Larsen |
Geologist |
glenn.larsen@dnr.state.oh.us |
(614) 265-6474 |
| Gregory A. Schumacher |
Geologist & H. R. Collins
Laboratory Coordinator |
greg.schumacher@dnr.state.oh.us |
(740) 548-7348 |
| Douglas L. Shrake |
Geologist |
doug.shrake@dnr.state.oh.us |
(614) 265-6579 |
| E. Mac Swinford |
Division Assistant Chief |
mac.swinford@dnr.state.oh.us |
(614) 265-6473 |
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| Cores & Samples |
| Gregory A. Schumacher |
Geologist & H. R. Collins
Laboratory Coordinator |
greg.schumacher@dnr.state.oh.us |
(740) 548-7348 |
| |
| Earthquakes & Geologic Hazards |
| Mike Hansen |
OhioSeis Network Coordinator |
mike.hansen@dnr.state.oh.us |
(740) 548-5979 |
| D. Mark Jones |
Geologist |
mark.jones@dnr.state.oh.us |
(614) 265-6595 |
| Glenn Larsen |
Geologist |
glenn.larsen@dnr.state.oh.us |
(614) 265-6474 |
| |
| Educational Programs |
| Gregory A. Schumacher |
Geologist & H. R. Collins
Laboratory Coordinator |
greg.schumacher@dnr.state.oh.us |
(740) 548-7348 |
| Douglas L. Shrake |
Geologist |
doug.shrake@dnr.state.oh.us |
(614) 265-6579 |
| |
| Environmental Geology |
| Mike P. Angle |
Mapping Group Supervisor |
mike.angle@dnr.state.oh.us |
(614) 265-6602 |
| Richard R. Pavey |
Geologist |
rick.pavey@dnr.state.oh.us |
(614) 265-6599 |
| |
| Fossil Collecting & Identification |
| Gregory A. Schumacher |
Geologist & H. R. Collins
Laboratory Coordinator |
greg.schumacher@dnr.state.oh.us |
(740) 548-7348 |
| Douglas L. Shrake |
Geologist |
doug.shrake@dnr.state.oh.us |
(614) 265-6579 |
| |
| Geologic Records |
| Madge R. Fitak |
Customer Service Specialist |
madge.fitak@dnr.state.oh.us |
(614) 265-6585 |
| Edward V. Kuehnle |
Publications Supervisor |
ed.kuehnle@dnr.state.oh.us |
(614) 265-6593 |
| |
| GIS & Interactive Maps |
| Donovan M. Powers |
GIS Administrator & Group Supervisor |
donovan.powers@dnr.state.oh.us |
(614) 265-6591 |
| Joseph G. Wells |
Database Administrator |
joseph.wells@dnr.state.oh.us |
(614) 265-1030 |
| James McDonald |
GIS Specialist |
jim.mcdonald@dnr.state.oh.us |
(614) 265-6601 |
| |
| Glacial/Surficial Geology & Mapping |
| Richard R. Pavey |
Geologist |
rick.pavey@dnr.state.oh.us |
(614) 265-6599 |
| Erik R. Venteris |
Geologist |
erik.venteris@dnr.state.oh.us |
(614) 265-6459 |
| Mike P. Angle |
Mapping Group Supervisor |
mike.angle@dnr.state.oh.us |
(614) 265-6602 |
| |
| Karst |
| Richard R. Pavey |
Geologist |
rick.pavey@dnr.state.oh.us |
(614) 265-6599 |
| Erik R. Venteris |
Geologist |
erik.venteris@dnr.state.oh.us |
(614) 265-6459 |
| |
| Lake Erie Geology |
| Mike P. Angle |
Mapping Group Supervisor |
mike.angle@dnr.state.oh.us |
(614) 265-6602 |
| D. Mark Jones |
Geologist |
mark.jones@dnr.state.oh.us |
(614) 265-6595 |
| |
| Landslides |
| Mark E. Wolfe |
Geologist |
mark.wolfe@dnr.state.oh.us |
(740) 548-7348 |
| |
| Mineral Resources - Coal |
| Ernie R. Slucher |
Geologist |
ernie.slucher@dnr.state.oh.us |
(614) 265-6627 |
| |
| Mineral Resources - Industrial Minerals & Aggregates |
| Mark E. Wolfe |
Geologist |
mark.wolfe@dnr.state.oh.us |
(740) 548-7348 |
| |
| Mineral Resources - Production & Employment Data |
| Mark E. Wolfe |
Geologist |
mark.wolfe@dnr.state.oh.us |
(740) 548-7348 |
| Joseph G. Wells |
Database Administrator |
joseph.wells@dnr.state.oh.us |
(614) 265-1030 |
| |
| Oil & Gas Information |
| Christopher J. Perry |
Energy Group Supervisor |
chris.perry@dnr.state.oh.us |
(614) 265-6584 |
| Ronald A. Riley |
Geologist |
ron.riley@dnr.state.oh.us |
(614) 265-6573 |
| Mark T. Baranoski |
Geologist |
mark.baranoski@dnr.state.oh.us |
(614) 265-6586 |
| |
| Oil & Gas Records |
| Madge R. Fitak |
Customer Service Specialist |
madge.fitak@dnr.state.oh.us |
(614) 265-6585 |
| Edward V. Kuehnle |
Publications Supervisor |
ed.kuehnle@dnr.state.oh.us |
(614) 265-6593 |
| Joseph G. Wells |
Database Administrator |
joseph.wells@dnr.state.oh.us |
(614) 265-1030 |
| |
| Radon |
| Mike Hansen |
OhioSeis Network Coordinator |
mike.hansen@dnr.state.oh.us |
(740) 548-5979 |
| |
| Soils |
| Erik R. Venteris |
Geologist |
erik.venteris@dnr.state.oh.us |
(614) 265-6459 |
| |
| Subsurface Geology |
| Christopher J. Perry |
Energy Group Supervisor |
chris.perry@dnr.state.oh.us |
(614) 265-6584 |
| Ronald A. Riley |
Geologist |
ron.riley@dnr.state.oh.us |
(614) 265-6573 |
| Mark T. Baranoski |
Geologist |
mark.baranoski@dnr.state.oh.us |
(614) 265-6586 |
| |
| Topographic Maps |
| Madge R. Fitak |
Customer Service Specialist |
madge.fitak@dnr.state.oh.us |
(614) 265-6585 |
| Edward V. Kuehnle |
Publications Supervisor |
ed.kuehnle@dnr.state.oh.us |
(614) 265-6593 |
| |
| Wetlands |
| Richard R. Pavey |
Geologist |
rick.pavey@dnr.state.oh.us |
(614) 265-6599 |
| Erik R. Venteris |
Geologist |
erik.venteris@dnr.state.oh.us |
(614) 265-6459 |
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