Welcome to the Sierra Club Rocky Mountain Chapter

The Sierra Club's members and supporters 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 Club is America's oldest, largest and most influential grassroots environmental organization.

The Sierra Club's Rocky Mountain Chapter is comprised of 9 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!

Free book! Best Front Range Snowshoe Routes with Alan Apt

Event admission: $22. Alan Apt, author and Wilderness Chair for the Sierra Club Rocky Mountain Chapter, will host a book signing and snowshoe clinic in Denver. This instructional clinic will cover what to wear, how to select or buy snowshoes, what kind of gear to use, and how to avoid avalanches. Come and enjoy photos of 80+ beautiful trails, mountain summits, and winter lakes along diverse snowshoeing trails. Buy Your Ticket Now and buy one for a friend!

Attend our Legislative Forum

The Audubon Society of Greater Denver and the Rocky Mountain Chapter of the Sierra Club invite you to attend the 2012 Legislative Forum to learn about the hot environmental topics of the upcoming session. This is always an entertaining and educational event! Admission is just $12, get your tickets now, and invite your friends!

Take Action!

New! 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!