ContactsCorporate:GSA Headquarters 3300 Penrose Place Boulder, Colorado, USA Post Code: 80301-9140 Fax: +1-303-357-1070 E-mail: gsaservice@geosociety.org Telephone: +1-303-357-1000  | 
                        
                            Geological Society of America (GSA)![]() 
	As an international scientific society, GSA serves members in academia, government, and industry around the world. Since 1888, GSA’s meetings, publications, and programs have enhanced the professional growth of geoscientists and fostered geoscience stewardship and service. GSA encourages cooperative research and public dialogue on geoscience issues and supports all levels of earth-science education. 
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