Membership is open to anyone with a serious interest in the geosciences.   Our members come from a variety of backgrounds throughout the United States, including academics, professional geologists, teachers, students, rock hounds, and stay-at-home parents.  We offer two types of membership designed to suit your individual preferences:

Regular (5-year) Membership – $25.00

Dues are $5.00 per year, but we request that you pay in five-year blocks. 

Lifetime Membership – $100.00

Membership is good until you become part of the geologic record.

We have two ways to become a member: 

Join CGS through the Membership Website using our online form with a credit card through our safe and secure site.  This site can also be used for renewing an expired membership.

Mail-in form and payment is no longer available.