Leave No Trace
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Leave No Trace is a supporter-powered nonprofit that uses science, education, and stewardship to protect and preserve the outdoors.
Join us in learning how to enjoy nature responsibly—for today and for future generations. The member-driven Leave No Trace Center for Outdoor Ethics teaches people of all ages how to enjoy the outdoors responsibly, and is the most widely accepted outdoor ethics program used on public lands. Through targeted education, research and outreach, the Center ensures the long-term health of our natural world.
Happy National Trails Day! 🥾🌿
There’s no better way to celebrate our trails than by caring for them.
As part of the Leave No Trace Spotlight program with Boulder OSMP, we joined community members at Boulder Valley Ranch for a stewardship project focused on construction, improve trail sustainability, help protect sensitive habitats, and improve accessibility for everyone who visits.
Stewardship is at the heart of both National Trails Day and Leave No Trace. Through hands-on service and education, volunteers helped support a trail system that not only expands recreation opportunities but also includes 10-15 miles of accessible trails for adaptive hand cyclists. This helps create more opportunities for all people to connect with the outdoors.
Thank you to everyone who showed up, pitched in, and demonstrated that protecting our public lands is a shared responsibility. Every act of stewardship, big or small, helps ensure these trails remain healthy, welcoming, and enjoyable for generations to come.
06/03/2026
National Trails Day is June 6, and this year we’re encouraging you to do more than simply spend time outdoors.
Trash on trails is a real problem, but we still don’t have all the data we need. That’s where you can help.
The Trash and Trails project, powered by CitSci.org and supported by Leave No Trace and the Bureau of Land Management , uses your trail observations to create research that land managers rely on.
Here’s how it works: download the CitSci app, join the Trash and Trails project, and report what you see. That’s all it takes. Each report, even from a single person on a single trail, contributes to a dataset that helps protect public lands year-round.
Download CitSci today to start making a difference.
06/02/2026
Join us for Leave No Trace Trivia Night on Thursday, June 4, from 6–8 PM at Fjällräven Boulder as we kick off the City of Boulder Open Space & Mountain Parks Leave No Trace Spotlight!
Test your knowledge of Leave No Trace principles, learn practical tips for protecting Boulder’s treasured open spaces and mountain parks, and connect with fellow outdoor enthusiasts. You'll also have the chance to meet staff from Leave No Trace, Boulder OSMP, Fjällräven, and other local partners.
Plus, enjoy a fun evening of stewardship-themed trivia, great prizes, and 30% off Fjällräven merchandise for attendees.
We hope to see you there!
📍Downtown Boulder, 1048 Pearl St, Boulder, CO 80302
05/28/2026
Public lands belong to everyone, and right now, they need our support. Since the BLM's public lands rule was repealed, it is up to those who care about these places to protect them. That means us. By learning and following the 7 Principles, we can help take care of what we share. Get outside, speak up, and leave no trace.
05/26/2026
The outdoors doesn't need much from us, just a little intention. Here are 5 trail habits worth building, no matter where you adventure.
05/23/2026
Millions of birds are moving through right now, stopping to rest and refuel. Noise, dogs, and off-trail foot traffic can push them from the stopover sites they depend on. A little space during their migration goes a long way. 🧐
05/21/2026
There's a difference between watching wildlife and disturbing it. Responsible viewing means observing behavior without changing it. If you can get close enough for a great photo, you might already be too close. When in doubt, use the "rule of thumb." It’s easy: make a thumbs up, extend your arm all the way, close one eye, and see if you can hide the animal with your thumb. If you can’t hide the entire animal with your thumb, take a few steps back and try again. When you can hide the whole animal, you are at a safe distance from wildlife.
Public lands are home to the wildlife that lives there year-round. We're the visitors. Treating that time in their habitat with respect; keeping distance, managing pets, and storing food is part of the deal.
05/15/2026
Leave No Trace instructors are the people who carry this work into the field. If your certification has lapsed , or it's been a few years since you've received your training, recertification keeps your teaching sharp and your impact current.
Summer is coming. It's a good time to get current.
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1000 North Street
Boulder, CO
80302
Opening Hours
| Monday | 9am - 5pm |
| Tuesday | 9am - 5pm |
| Wednesday | 9am - 5pm |
| Thursday | 9am - 5pm |
| Friday | 9am - 5pm |