WHAT'S HAPPENING

  • Send a message to thank President Obama for naming Katahdin Woods and Water​ our newest national monument.​
  • "Captain Fantastic" star Viggo Mortensen joins with the Sierra Club to celebrate the National Park Service Centennial and looks forward to the next 100 years of conservation and nearby nature.
  • Looking for a National Park Service 100th anniversary T-shirt, national park notecards, a classic Sierra Club stainless steel camping cup, or other gear? We've got it!
  • Looking for a getaway? We've got 300+ ideas for you.
  • Sign up with Arcadia Power today and they'll send the Sierra Club a donation -- plus you'll receive 4 free LEDs.
  • GO LOCAL

    See what we are doing in:
     
     
     
     

    ACT NOW

     

    Be a member of the country's largest, most effective grassroots movement.

    We are the nation's largest and most influential grassroots environmental organization.

    MOST POPULAR CONTENT

    Thanks to the generosity of our partners, volunteers, and supporters, Military Outdoors has lined up an incredible summer and fall with six...
    Barn owl
    A new study shows just how much owls can help farmers reduce rodents in their fields

    NOW IN SIERRA MAGAZINE

    FROM OUR BLOGS

    On August 1, the White House Council on Environmental Quality released its Final Guidance on Greenhouse Gases and Climate Change. Although...
    Michael Brune
    President Donald Trump would be the only world leader on the planet who doesn't believe that climate change is real.

    FEATURED OUTINGS

    August 27, 2016 to September 5, 2016
    Secluded among the high peaks of Kings Canyon National Park, Gardiner Basin remains untouched by trails and far from crowds. Our...
    August 27, 2016 to September 3, 2016
    Our cozy inn is set amid mountains, alpine flowers, hummingbirds, and a rushing mountain stream. We will hike a variety of mountain trails...
    Connect with the Sierra Club