Join us in celebrating autumn through an exciting indoor slide and activity program! Explore the beauty of our county's open spaces virtually and discover the best spots to enjoy the vibrant colors of this season's plants. Whether you're looking for a scenic picnic spot near a trailhead, a hike along picturesque paths that showcase fall's splendor, or a leisurely ramble to study the diverse birds and flora of our area, we've got you covered! Registration required. Register

Bring the whole family for a nighttime adventure at Heil Valley Ranch! We’ll learn about Boulder County’s amazing bats, why they’re important to nature, and what challenges they face. We’ll use a bat detector to listen in on their high-frequency calls and explore the ranch’s nighttime soundscape. A fun and educational adventure for nature lovers of all ages! Registration required. Register .tribe-events-c-subscribe-dropdown{display:none;}

Embark on a creative adventure at Walden Ponds Wildlife Habitat. This all-ages program will guide you on a nature walk while observing the beauty of the landscape. Then, unleash your inner artist and capture the wonders you see through sketching, writing, and colorful exploration in your nature journal. All supplies are included. No artistic experience is necessary, just a love for nature and a curious mind! Registration Required. Register .tribe-events-c-subscribe-dropdown{display:none;}

Drop by anytime during the open house to go inside the historic schoolhouse where students studied and played from 1880 to the World War II era. Volunteers will be on hand to share the school’s history and restoration with visitors. If time allows, you can take part in a game or spelling bee. Registration not required.

Join us for a 1-mile, easy to moderate hike in the foothills near Boulder. We’ll look at what’s still blooming in this wildflower hotspot and talk about how pollinators and flowers interact on the landscape. Registration required. Register .tribe-events-c-subscribe-dropdown{display:none;}

Curious about the hidden world of fungi? Join us for a guided mushroom walk and hands-on exploration to discover the vital role they play in sustaining healthy ecosystems. Learn simple ways to protect biodiversity in your own backyard while connecting with fellow nature enthusiasts. No prior fungi knowledge required. Registration required. Register .tribe-events-c-subscribe-dropdown{display:none;}

Some birds are seen year-round in Boulder County, some only in summer or winter, and others visit only briefly in spring or fall. Learn why birds make seasonal journeys, how they know when and where to go, how they find their way, and what brings them back year after year. Join volunteer naturalists to explore these and other fascinating mysteries surrounding the amazing world of bird migration. Registration required. Register .tribe-events-c-subscribe-dropdown{display:none;}

Does it seem like astronomers speak a different language? Let's demystify some astronomical names and terms. Join us for fun demonstrations and an interactive ‘language’ lesson. Then, view the night sky and understand, as astronomers describe what we see through the telescopes. Registration required. Register .tribe-events-c-subscribe-dropdown{display:none;}

Join us for an outdoor family program designed for children 6 and older, though all ages are welcome. We will explore the fascinating world of mining history and geology in Nederland, beginning with a hike at Mud Lake. Families will take part in activities such as erosion control, building the Flatirons, and matching minerals with their commercial uses. After our outdoor exploration, we will head to the Nederland Mining Museum to learn more about the mining process and experience the thrill of gold panning. This program blends hands-on activities with history and science to foster a love for nature, geology, and local heritage in a fun, interactive setting. Registration required. Register .tribe-events-c-subscribe-dropdown{display:none;}

Join volunteer naturalists for an art program in nature! Volunteers will provide limited guidance in creating one or more drawings that capture elements of the natural world found at Hall Ranch. They will demonstrate how thumbnail sketches on a single page can create a coherent composition and share examples from well-known nature artists, such as Linda Miller Feltner and John Muir Laws, for inspiration. The program provides ample time to create a composition of your choice. No experience is necessary. All supplies are provided. Registration required. Register .tribe-events-c-subscribe-dropdown{display:none;}

Join the Boulder Mountainbike Alliance and Boulder County Parks & Open Space for a morning of riding the beginner and kid friendly trails at Heil Valley Ranch. This event will have mini-skills clinics, route suggestions, bike decorating materials, and educational information. This event is recommended for families with kids ages 3 to 10. Free loaner kids' mountain bikes will be available, or you can bring your own mountain bike and helmet. Guided rides with Boulder Mountainbike Alliance for all ages start at 9:30 and depart every half hour. Come anytime between 9 a.m. to noon for bike decorating and independent exploration of the trails. Children must be accompanied by an adult. Registration required. Register

Join us at Rock Creek Farm this harvest season to explore the past, present, and future of Boulder County agriculture. Learn about county plans for working lands conservation, our own relationships with our food system, and the role of regenerative agriculture in building a resilient ecological landscape. Together, we will envision a future where all voices help shape a thriving, equitable agricultural and food system. Registration for most programs begins on the 20th of the month before the event. Registration required. Register .tribe-events-c-subscribe-dropdown{display:none;}