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Find Your Science at GSA

The Geological Society of America® (est. 1888)

Our Vision Our Mission

To be the premier geological society supporting the global community in scientific discovery, communication, and application of geoscience knowledge.

To advance geoscience research and discovery, service to society, stewardship of Earth, and the geosciences profession.

GSA Headquarters

GSA HQ Visitor Guide


Located at 3300 Penrose Place in Boulder, Colorado, GSA Headquarters is a one-of-a-kind, award-winning building featuring solar panels both on the roof and on the ground (learn more about GSA's sustainability efforts). Inside, you'll find a collection of rocks, minerals, and other specimens donated over the past 125 years.

Visit us in Boulder or take a virtual tour:
Flip Book | PDF ]

The Geological Society of America (GSA) is a global professional society with a growing membership of more than 26,000 individuals in 115 countries. GSA provides access to elements that are essential to the professional growth of earth scientists at all levels of expertise and from all sectors: academic, government, business, and industry. The Society unites thousands of earth scientists from every corner of the globe in a common purpose to study the mysteries of our planet (and beyond) and share scientific findings. GSA is supported, in part, by funds donated to and raised by the GSA Foundation.

Primary Activities

[ Annual report | Demographics ]

Membership Categories

[ Learn more about GSA membership ]


[ Learn more about GSA's publications ]


[ Learn more about GSA's meetings ]

Multidiscipinary and Regional Connections

[ Multidisciplinary connections | Regional sections ]

GSA's History

[ 1898 Presidential Address | Founder's Blog ]

GSA's Commitment to Diversity

The Geological Society of America (GSA) affirms its belief and commitment to diversity and will continue to develop its diverse base. GSA is dedicated to maintaining an organizational climate where differing ideas, abilities, backgrounds, and needs are fostered with opportunities for members from divergent experiences to participate and contribute. GSA recognizes that diverse perspectives are important and necessary for responsible and representative decision-making and leadership. Therefore, GSA strongly encourages the participation in any GSA activity of all its members regardless of race, sex, creed, age, sexual orientation, national origin, religion, or disability and will undertake reasonable efforts to ensure that its activities are open to all. Read GSA's Official Position Statement on Diversity in the Geosciences Community. Every year at our annual and section meetings, there are sessions and events that explicitly or implicitly underscore opportunity, diversity, and civil rights. Read President John Geissman’s letter to the Charlotte Convention and Visitors Bureau regarding the 2012 same-sex marriage ban by the North Carolina State Legislature.