The counties of Missouri included in the Eastern Missouri Group are:
Bollinger
Butler
Cape Girardeau
Carter
Clark
Dunklin
Franklin
Iron
Jefferson
Lewis
Lincoln
Madison
Marion
Mississippi
New Madrid
Pemiscot
Perry
Pike
Ralls
Reynolds
Ripley
Scott
St. Charles
St. Francois
St. Louis
St. Louis City
Ste. Genevieve
Stoddard
Warren
Washington
Wayne
For information on other Sierra Club groups in Missouri (see Missouri Chapter).