Central Great Lakes Geologic Mapping Coalition

Great Lakes Geologic Mapping Coalition
producing urgently needed, detailed, three-dimensional surficial materials maps of the Great Lakes states

Publications

Geological Survey

Illinois State Geological Survey

Indiana Geological Survey

Michigan Geological Survey

Minnesota Geological Survey

New York State Geological Survey

Ohio Division of Geological Survey

Pennsylvania Geological Survey

Wisconsin Geological and Natural History Survey

U.S. Geological Survey

Geologic Mapping

Introduction
National Cooperative Geologic
Mapping Program
Mapping Tools

Delivering Information

Featured Products
- Coalition Brochure
- Allen Co. Geologic Atlas
- more...
Issue Statements
Presentations
- ScholarWorks (Posters)
- Publications

Users and Supporters

Members and Affiliates

Coalition in Action