Join volunteer naturalists for a slideshow program to kick off the wildflower season! You’ll learn about the diversity of wildflowers in Boulder County from the plains to the alpine, where and when to look for them, and some interesting stories about some of our native plants. Sign up for this program on the Lyons Community Library website. Register .tribe-events-c-subscribe-dropdown{display:none;}

Take time to look at nature through an artistic lens. Experience an opportunity to sketch the awe-inspiring aspects of our county parks through a process of observation, contemplation, and visualization. Absolutely no experience in the arts is needed. Volunteer naturalists will guide your journey with ideas, some direction, and an opportunity to practice various skills. Through a series of five programs, we will explore basic sketching principles to make your experience unique and fun-filled. Programs will be held on the second weekend of the month, from 10 am to 12:30 pm, at either Walden Ponds or Pella Crossing.Registration required.Register .tribe-events-c-subscribe-dropdown{display:none;}

Drop by anytime between 11 a.m. and 2 p.m. to go inside the historic Altona 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.

There is much to learn about the cosmos. The night sky has brought wonder to all for millennia, and we have only just started to see what’s really out there. Join us for an interactive slide presentation about our universe and the stars, moons, and planets in our galaxy. Learn about the latest discoveries and how you can observe the big night sky for celestial bodies! Registration required. Register .tribe-events-c-subscribe-dropdown{display:none;}

Look up as two of the brightest planets put on a rare show together. Join volunteer naturalists to explore how planets move across our sky and why Venus and Jupiter sometimes appear side by side. Learn easy tips for spotting planets and enjoy an evening sharing stories and views of our solar system. Presentations will be at the picnic shelter, followed by stargazing in the parking area. The Longmont Astronomical Society provides telescopes. Bring a chair or blanket, a light jacket, and a red flashlight, and get ready to enjoy a night under the stars!Registration required.Register .tribe-events-c-subscribe-dropdown{display:none;}

Take a guided 3-mile walk through time at Pella Crossing as we explore Boulder County’s past, present, and future. Learn how plants, wildlife, people, and climate have shaped this landscape from 1820 to today, and what the next 100 years may bring. Discover connections between ecology and human history while experiencing the park’s diverse habitats. Registration required.Register .tribe-events-c-subscribe-dropdown{display:none;}

Join us for a special open house at the Assay Office Museum, a surviving structure from the heyday of hard rock mining in the Colorado mountains. Discover how miners once tested ore for valuable metals using assaying. Explore original tools and historical artifacts and hear stories from the mining boom era. Learn about the families who lived and worked in this rugged landscape and helped shape the region's rich mining heritage. This is a must-visit for anyone passionate about mining history, geology, or Colorado history. No registration needed.Registration required.Register

Join volunteer naturalists for a gentle summer solstice stroll at Pella Crossing. We’ll move at the pace of our most curious hiker as we explore how plants and animals adapt to the season. Flat trails and plenty of benches make this an easy, relaxing way to welcome summer’s warmth.Registration required.Register .tribe-events-c-subscribe-dropdown{display:none;}

This program is for anyone who enjoys watching birds or simply wants something fun and different to do outdoors. We welcome those who identify as LGBTQIA+, as well as allies, families, and anyone who wants to enjoy an inclusive outdoor experience. This will be a slow 1.5-mile hike on a wide, relatively flat trail. This free event is open to all ages and skill levels, and no prior birdwatching experience is necessary. Loaner optics will be provided.Registration required.Register .tribe-events-c-subscribe-dropdown{display:none;}

Strike it rich! Try your hand at gold panning and learn how the search for treasure sparked the European settlement of Boulder County. Do you have what it takes to uncover gold like a 19th-century prospector? Fun for kids 5 and older (and grown-ups, too).Registration required.Register for the Noon Session Register for the 12:45 Session Register for the 1:30 Session .tribe-events-c-subscribe-dropdown{display:none;}

This hike will reveal the Ron Stewart Preserve at Rabbit Mountain that you have never known! We’ll explore the unique natural history, reveal the cultural history, tell stories, and share fun facts about this open space property located near Lyons. Registration required.Register .tribe-events-c-subscribe-dropdown{display:none;}