New Publication:
A new Coalition publication entitled "A multiagency and multijurisdictional approach to mapping the glacial deposits of the Great Lakes region in three dimensions"* is now available at the GSA Special Papers Online First web page. The manuscript is a chapter in GSA Special Paper 520: Geoscience for the Public Good and Global Development: Toward a Sustainable Future. Link follows:

*Manuscripts appearing on the Online First page have been accepted, edited, and prepared for publication. The manuscripts are removed from the Online First page once the complete volume has been published.

Upcoming Events:
2017 Events
GSA Annual Meeting
Seattle, Washington
October 22–25, 2017
NGMDB Digital Mapping Techniques Workshop
Minneapolis, Minnesota
May 21–24, 2017
Coalition Annual Meeting
Pittsburgh, Pennsylvania
March 22, 2017
GSA NE-NC Joint Section Meeting
Pittsburgh, Pennsylvania
March 19–21, 2017

Past Events:
2016 Events
GSA Annual Meeting
Denver, Colorado
September 25–28, 2016
GSA NC Meeting
Urbana-Champaign, Illinois
April 16-20, 2016
Coalition Annual Meeting
2015 Events
GSA Annual Meeting
Baltimore, Maryland
November 1–4, 2015
GSA NC Meeting
Madison, Wisconsin
May 19–20, 2015
Coalition Annual Meeting

Why a geologic mapping coalition?

In the late 1990s, the state geological surveys of Illinois, Indiana, Michigan, and Ohio joined with the U.S. Geological Survey to form the Central Great Lakes Geologic Mapping Coalition. More recently, the Coalition has expanded to include four additional states bordering the Great Lakes—Minnesota, New York, Pennsylvania, and Wisconsin. These eight states have similar geologic conditions and must address common societal issues about land and water resources, the environment, and geologic hazards. By integrating their expertise and resources, the geological surveys are addressing these issues more effectively than could any one agency.

Priority Areas

*click a state to view its corresponding page
Minnesota Wisconsin Michigan Illinois Indiana Ohio Ontario Pennsylvania New York

Members and Affiliates

Coalition in Action