Sierra Club members and supporters are are more than 1.3 million of your friends and neighbors. Inspired by nature, we work together to protect our communities and the planet. The Sierra Club is America’s oldest, largest and most influential grassroots environmental organization.

Through grassroots activism, public education, lobbying and litigation, the Sierra Club works to protect the health of our environment and the preserve our remaining wild places.

• establishment, expansion, and protection many national parks, including significant parts of Yosemite and Yellowstone
• enactment of the Clean Water Act and the Endangered Species Act

• national monument status for Utah’s Grand Staircase-Escalante

• Alaska National Interest Lands Conservation Act designating more than 100 million acres of parks, wildlife refuges, and wilderness areas

The Sierra Club was founded in 1892 by John Muir. Click here to learn more about the Sierra Club history and the Club’s accomplishments over the past century.