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Have a question about Wisconsin geology? Check out our list of experts at the Survey who can help. Look for the category that best fits your question. Please contact just one person—we’ll reroute you if needed.
Current WGMAC members
The Wisconsin Geologic Mapping Advisory Committee (WGMAC) is a group that advises WGNHS on local, regional, and statewide geological mapping needs for Wisconsin. WGMAC meets annually to review and approve mapping plans that WGNHS then proposes to grant programs within the National Cooperative Geologic Mapping Program. Updated March 2026.
| WGMAC Member | Organization |
| Molly Gardner | DNR, Metallic Mining Coordinator |
| Patricia Cicero | Jefferson County Conservationist |
| Megan Haserodt | USGS |
| Megan Luick | USFS |
| Howard Veregin | UW-Madison, State Cartographer |
| Dyanna Czeck | UWM |
| Esther Durairaj | Wisconsin Women in Conservation, Michael Fields Agricultural Institute |
| John Coleman | GLIFWC |
| Mark McColloch | DATCP |
| Rachel Greve | DNR |
| Paula Leier-Englehardt | Hydrogeosolutions, LLC |
| Chistina Anderson | Wisconsin Land & Water Conservation Association |
| Tricia Gorby | Extension |
| John Jansen | Collier Consulting |
| Tim Asplund | DNR |
| Lori Bowman | DATCP |
| Bruce Rheineck | DNR |
| Kevin Masarik | Extension |
| Steve Gaffield | Emmons & Olivier Resources, Inc. |
| Tom Krauskopf | DOA |
| Gary Werner | Ice Age Trail Association |
Research Affiliates
The Wisconsin Geological and Natural History Survey has enjoyed and supported a variety of collaborative research relationships with a large number of professional colleagues in universities and local, county, state, and federal agencies and organizations. These individuals may work directly with WGNHS staff on internally funded projects, as co-investigators on outside-funded grants and contracts, or independently on projects that complement or supplement existing WGNHS programs and priorities. In recognition of these beneficial and productive relationships, we have created the honorary title of Research Affiliate.
- John W. Attig, University of Wisconsin–Madison (emerit)
- Emily Baker, Hamilton College
- Erin Berns-Herrboldt, University of Wisconsin-Green Bay
- Kenneth R. Bradbury, University of Wisconsin–Madison (emerit)
- Andrew J. Breckenridge, University of Wisconsin–Superior
- Latisha A. Brengman, University of Minnesota–Duluth
- Bruce Brown, University of Wisconsin–Madison (emerit)
- Michael Cardiff, University of Wisconsin–Madison
- Daniel T. Feinstein, U.S. Geological Survey (retired)
- Michael N. Fienen, U.S. Geological Survey
- Dante O. Fratta, University of Wisconsin–Madison
- Matthew Ginder-Vogel, University of Wisconsin–Madison
- Madeline Gotkowitz, Wisconsin Department of Natural Resources
- V.J.S. (Tien) Grauch, U.S. Geological Survey (emerit)
- Randall J. Hunt, U.S. Geological Survey (retired)
- Mark D. Johnson, University of Gothenburg (retired)
- George J. Kraft, University of Wisconsin–Stevens Point (emerit)
- John A. Luczaj, University of Wisconsin–Green Bay
- Shaun A. Marcott, University of Wisconsin–Madison
- Kevin Masarik, University of Wisconsin-Stevens Point, College of Natural Resources & University of Wisconsin-Madison, Division of Extension
- David M. Mickelson, University of Wisconsin–Madison (emerit)
- William N. Mode, University of Wisconsin–Oshkosh (emerit)
- Athena Nghiem, University of Wisconsin–Madison
- Randall J. Schaetzl, Michigan State University
- John D. Skalbeck, University of Wisconsin–Parkside
- Nathaniel (Nat) Stephens, ExxonMobil (retired)
- Kent M. Syverson, University of Wisconsin–Eau Claire
- James M. Tinjum, University of Wisconsin–Madison
- Amy Wiersma, Wisconsin Department of Natural Resources
- Laurel G. Woodruff, U.S. Geological Survey (emerit)
- Christopher Zahasky, University of Wisconsin–Madison
- Lucas K. Zoet, University of Wisconsin–Madison





