The Sierra Club's members and supporters are more than 2.1 million of your friends and neighbors. Inspired by nature, we work together to protect our communities and the planet. The Club is America's oldest, largest and most influential grassroots environmental organization.
The Sierra Club's Rocky Mountain Chapter is comprised of 10 local groups spread out across the great state of Colorado. Explore this website to learn more about what we're doing, where we're headed, and how you can participate. We're involved in everything from recycling and hiking to environmental education and conservation - join in and help us protect the air, land and water throughout our beautiful state!
JOIN THOUSANDS OF COLORADANS ON COLORADO GIVES DAY, 12/9!
Thousands of Coloradans are giving millions in donations on a single day of the year to their favorite nonprofits!
Join them by choosing us as your favorite nonprofit fighting for you to protect Colorado. We're here to enlist humanity to explore, enjoy, and protect the planet, and we can't do that without you! Check out the details on the Colorado Gives Day website.
Get a free solar estimate for your home!
Sierra Club has partnered with Sungevity, one of the country's leading rooftop solar providers to help members and supporters go solar, save money, and cut pollution. Colorado joins with several other states in this new Sierra Club offering. We're working on solutions for bringing America into the Age of Clean Energy. Whether you buy or lease your new solar power, just flip the switch on dirty coal, oil, and natural gas, and GO SOLAR! The Sierra Club Rocky Mountain Chapter benefits from every estimate given, and every solar installation. Sign up now!
When our Conservation volunteer leaders spring into action... you can help! In fact, your help makes all the difference it takes to win! Click on "Get Involved"" or "Take Action" on the left-hand menu, or just click the Get Involved button on the top-right. Check frequently for new actions!