About Us

Our Mission:

To explore, enjoy and protect the wild places of the Earth; to practice and promote the responsible use of the Earth's ecosystems and resources; to educate and enlist humanity to protect and restore the quality of the natural and human environment; and to use all lawful means to carry out these objectives.


The Indiana/Hoosier Chapter of the Sierra Club was founded in 1975.

John Muir, the founder of the Sierra Club and "Father of our National Parks," lived in Indiana from the spring of 1866 through June, 1867.  He worked at a carriage-parts factory, and spent what little free time he had exploring the nearby forests for their botanical treasures.

When an industrial accident temporarily blinded him, Muir wrote that he was, "determined to devote the rest of my life to the study of the inventions of God."  When Muir's sight returned, he left Indiana to embark on a 1,000-mile walk to the Gulf of Mexico, and went on to become a wilderness explorer, conservationist, and defender of the environment.  He founded the Sierra Club in 1892 and was its first president.

In 2004, the Indiana Chapter of the Sierra Club had a State Historical Marker erected in Indianapolis in memory of John Muir, and continues to honor Muir's legacy by working to protect the environment for all Hoosiers.  From community issues and action, to lobbying on a state and national level, the Club works to take effective action where it's needed most.  Members enjoy volunteering with like-minded folks, and take advantage of the many great outings, resources, programs, and local, state, and national training seminars that are worthwhile and fun. 

Join with the Indiana Chapter of the Sierra Club and make a difference where you live!

Become a Member 

Join 2.4 million Sierra Club supporters to lead the charge away from dirty fossil fuels and protect millions of acres of wilderness.  Indiana members receive automatic membership in the Sierra Club Hoosier Chapter, a subscription to the Sierra magazine, and other perks. Add your voice today.

Upcoming Events

Find out what's happening in your neck of the woods by visiting our event page for events throughout Indiana.

Volunteer with Us

Saving the planet isn't an easy gig, and we need all the help we can get. You can email hoosier.chapter@sierraclub.org to find out how in our upcoming and ongoing volunteer opportunities.


National Sierra Club Elections Results 

The Inspectors of Election have reported the final results of the 2019 Sierra Club Board of Directors election. You can view them here.