We are 1,500 members of the Sierra Club in the 28 counties of eastern Oklahoma. Our mission is to Explore, Enjoy and Protect the planet, through outings, activism, education, social events and volunteer activities. Green Country is part of the Sierra Club's Oklahoma Chapter.

If you have a home address in eastern Oklahoma and join the national Sierra Club, you will automatically become a member of the Green Country Group. 

Meetings

All Green Country Group meetings and events are free and open to the public. Our monthly general meeting is held at 7 p.m. on the last Thursday of each month at the Linnaeus Teaching Gardens, Helmerich Classroom in the Red Barn behind the Tulsa Garden Center at 2435 S. Peoria Avenue, Tulsa, OK, 74114. (The meeting date is subject to rescheduling because of holidays, so please check our schedule!)

Green Country Executive Committee (Ex-Com)

The Green Country Ex-Com meets on the 3^rd Tuesday of each month from 6:00 pm to 8:00 pm. All Green Country members are welcome to attend. The meetings are held at the Schusterman-Benson Library located at 3333 E. 32^nd Place, Tulsa.

Our group is governed by an elected Executive Committe ("Ex-Com"). The Ex-Com is comprised of 7 members that serve rotating 2-year terms.  

Green Country Sierra Club - 2024 Leadership