WHAT'S HAPPENING

  • "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!
  • 2016 trips are here. 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.
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    MOST POPULAR CONTENT

    Last week the Sierra Club’s Ready for 100 Campaign, Renewable Cities, ICLEI USA, and the San Francisco Department of the Environment...
    Critter crossing
    Our highways and interstates present one of the greatest threats to wildlife—that's where critter corridors come in.

    NOW IN SIERRA MAGAZINE

    Critter crossing
    Our highways and interstates present one of the greatest threats to wildlife—that's where critter corridors come in.
    Mr. Green cooks up a few tips.

    FROM OUR BLOGS

    As part of year-long celebrations of the National Park Service Centennial, the Sierra Club is working with local communities on trail...
    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

    July 26, 2016 to August 6, 2016
    Trek an otherworldly volcanic landscape where few have gone before. Our route will take us from Landmannahellir through the Reykjadalur...
    July 28, 2016 to July 31, 2016
    Abundant wildlife, lush forests, sparkling waterfalls, and exciting rapids make this one of the West's premier river trips. Try an...
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