Sierra Club
MottoExplore, enjoy and protect the planet.
FormationMay 28, 1892; 126 years ago (1892-05-28)
FounderJohn Muir
Type501(c)(4) nonprofit advocacy organization
HeadquartersOakland, California, U.S.
Membership
3 million (self-reported)
Exec. Dir.
Michael Brune
President
Loren Blackford
AffiliationsSierra Club Foundation, Sierra Student Coalition, Sierra Club Books, Sierra Club Canada
Budget
$97,891,373 (2013)
Staff
600
Websitewww.sierraclub.org