Learn more about the Alternating Trail Use Pilot Project and provide feedback. Two open houses are scheduled and will include the same information and activities. Please attend only one. Each event is drop-in style so you can come any time during the scheduled hours. There will be stations with information about the pilot and chances to share your thoughts. Expect to spend 20–30 minutes, depending on how much feedback you want to share. Please note, there will not be a formal presentation with commentary, feedback will be gathered through the activities. Food and refreshments will be provided. Sign Up Registration is not required, but you can still sign up to receive email reminders and be notified in case the event is unexpectedly canceled.
Hikes & Events
Events
Calendar of Events
|
Sunday
|
Monday
|
Tuesday
|
Wednesday
|
Thursday
|
Friday
|
Saturday
|
|---|---|---|---|---|---|---|
|
0 events,
|
0 events,
|
0 events,
|
0 events,
|
1 event,
-
|
0 events,
|
1 event,
-
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! Participation is flexible; feel free to stay at the accessible shelter if you prefer or join the optional walk at your own comfort level.Registration required.Register .tribe-events-c-subscribe-dropdown{display:none;} |
|
0 events,
|
0 events,
|
0 events,
|
0 events,
|
0 events,
|
1 event,
-
Join us to kick off wildflower season by learning about the diversity of wildflowers in Boulder County. Participants will learn about species ranging from the plains to the alpine, as well as where and when to look for them. Presented by Boulder County Parks and Open Space. Registration will open approximately 20 days before the event. <!-- Registration required. Register --> .tribe-events-c-subscribe-dropdown{display:none;} |
0 events,
|
|
0 events,
|
0 events,
|
0 events,
|
1 event,
-
Learn more about the Alternating Trail Use Pilot Project and provide feedback. Two open houses are scheduled and will include the same information and activities. Please attend only one. Each event is drop-in style so you can come any time during the scheduled hours. There will be stations with information about the pilot and chances to share your thoughts. Expect to spend 20–30 minutes, depending on how much feedback you want to share. Please note, there will not be a formal presentation with commentary, feedback will be gathered through the activities. Food and refreshments will be provided. Sign Up Registration is not required, but you can still sign up to receive email reminders and be notified in case the event is unexpectedly canceled. |
0 events,
|
1 event,
-
Ever wonder what lies beyond our solar system? Or how far we can see when we look deep into the night sky? Join Boulder County volunteer naturalists for an evening of exploration that begins close to home and extends to the origins of the universe. Start with a look at the objects found in our own solar system, then stretch outward to the stars and structures of the Milky Way. Then we’ll travel even farther, discovering what “deep sky” is and how these distant sights help us understand where the universe came from. Along the way, we’ll introduce the Big Bang in simple, engaging terms and share how scientists study the early universe today. 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;} |
3 events,
-
World Migratory Bird Day is officially celebrated on the second Saturday of May in Canada and the U.S., and the second Saturday of October in Mexico, Central and South America, and the Caribbean. This year, World Migratory Bird Day highlights birds from around the world to celebrate the 2026 theme: “Every Bird Counts – Your Observations Matter!” Learn how these species contribute to our understanding of migratory patterns and connect with communities across the globe. Join us on Saturday, May 16, at Walden Ponds Wildlife Habitat for a fun-filled day celebrating the incredible journeys of migratory birds and learning how we can all make a difference for bird conservation. Event Highlights: Special ceremony recognizing Boulder as an official Bird City by the Bird City Network. Live bird-of-prey showcase. Guided bird walks for all abilities (available in English and Spanish). Bird identification games & hands-on activities for all ages. Educational stations hosted by amazing organizations like the Butterfly Pavilion, City of Boulder Open Space and Mountain Parks, Greenwood Wildlife Rehabilitation Center, Boulder Audubon Society, Harlequin’s Gardens, and the Xerces Society for Invertebrate Conservation. 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.
-
Pollinators play essential roles in our food supply and the health of ecosystems. While many of us think of honeybees as the primary pollinators, much of the work is done by other surprising sources, including beetles, butterflies, moths, wind, and water. Discover the many pollination strategies of plants during this family-friendly slideshow and outdoor walk. We’ll explore how plants and animals work together to create a bountiful world, and what we can do to help them thrive. Registration will open approximately 20 days before the event. <!-- Registration required. Register --> .tribe-events-c-subscribe-dropdown{display:none;} |
2 events,
-
World Migratory Bird Day is officially celebrated on the second Saturday of May in Canada and the U.S., and the second Saturday of October in Mexico, Central and South America, and the Caribbean. Come celebrate World Migratory Bird Day with us at our next Birding Big Sit at Lagerman Reservoir! This inclusive trailhead event allows park users to both stand and sit to watch birds. Spotting scopes and optics will be available to borrow and use. This is a drop-in event for anyone who wants to see birds. All ages and skill levels are welcome. We will be under the shelter near the parking lot. Registration required.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;} |
0 events,
|
0 events,
|
0 events,
|
1 event,
Hybrid Event
-
Hybrid Event
Integrated Weed Management Plan Implementation - Red Hill Cheatgrass Treatment Pause This public meeting continues the Board of County Commissioners’ discussion from the Feb. 26 public meeting on the Integrated Weed Management Plan (IWMP) 2025 annual report and the Red Hill drone spraying project at Heil Valley Ranch Open Space. The commissioners raised several questions about the annual report, and the Parks and Open Space Department memo will address those inquiries. The meeting will also include a discussion by the commissioners on the paused IWMP implementation efforts at Red Hill, which were put on hold at the end of 2025. No public comment will be accepted during this public meeting. Learn more about the IWMP. Watch thee meeting using Zoom Call-in information: 1-833-568-8864, Webinar ID: 165 750 7000 |
1 event,
-
Children ages 3-6 will love to visit the farm to learn about animals, plants, and agricultural life. Discover the importance of cows to the farm through stories, butter making, and milking Lohry, our life-sized replica cow. We’ll also visit the live cows on the farm. Afterwards, explore the farm. Children must be accompanied by an adult. No registration required. |
1 event,
-
Drop by anytime from 10 a.m. to noon to watch the blacksmith work his craft. Listen to the clang-clang-clang of the hammer and the hum of the coal forge blower. Learn about blacksmithing tools such as hammers, tongs, anvils, swage blocks, and more. Registration not required but recommended. Sign Up |
|
0 events,
|
0 events,
|
0 events,
|
0 events,
|
2 events,
-
This event was originally scheduled for May 21, but was rescheduled to May 28 due to muddy conditions. Discover the resilience of nature on a 2-mile hike along Heil Valley Ranch’s Lichen Loop, where wildflowers bloom in the wake of wildfire. We’ll explore their beauty, ecological role, and cultural history at a relaxed pace. The trail includes moderate inclines and rocky areas and may have mud or ice patches; hiking poles and traction are recommended. Participation is flexible; join as much of the walk as you’re comfortable with or hang back at the shelter. Registration required. Register .tribe-events-c-subscribe-dropdown{display:none;}
Hybrid Event
-
Hybrid Event
The Parks & Open Space Advisory Committee (POSAC) will meet on May 28 from 5:30 to 8 p.m. The meeting will be held in a hybrid format where attendees can join through Zoom or in-person at the Boulder County Courthouse, 1325 Pearl Street, 3rd Floor, Boulder. Complete details can be found at Parks & Open Space Advisory Committee. |
0 events,
|
1 event,
-
Join us to meet some of our most important native conifers. We will walk about 2 miles around Mud Lake and down to the creek, looking for examples of the diversity of conifers in this ecosystem, including pine, spruce, and fir. We will attend to the habitats of the various evergreen species, why they are, where they are, and look for evidence of their relationships with other plant and animal members of the forest community. We’ll talk about how climate change affects conifers and will learn some identification tips. Registration required.Register .tribe-events-c-subscribe-dropdown{display:none;} |
|
0 events,
|
0 events,
|
0 events,
|
0 events,
|
0 events,
|
1 event,
-
Join Andrea Van Sambeek (certified yoga instructor) for a gentle yoga class and take in the views from your mat. Pause, breathe, and revitalize in this idyllic setting. After connecting with breath and movement, stay to explore all the Agricultural Heritage Center has to offer. Please bring your own yoga mat. All levels are welcome! Ages 12 and older. Registration required. Register .tribe-events-c-subscribe-dropdown{display:none;} |
3 events,
-
Drop by anytime from 10 a.m. to noon to watch the blacksmith work his craft. Listen to the clang-clang-clang of the hammer and the hum of the coal forge blower. Learn about blacksmithing tools such as hammers, tongs, anvils, swage blocks, and more. Registration not required but recommended.Register .tribe-events-c-subscribe-dropdown{display:none;}
-
Explore the habitat and behaviors of ravens and wolves, along with crows and coyotes. These species are known for their intelligence, social bonds, and misunderstood reputations. All are native to Colorado, although wolves have been absent from Boulder County since the 1940s, until now! Join us to discover what makes these animals so interesting, how they interact, and the unique partnership between wolves and ravens. The program includes hands-on exploration of mounts, pelts, scat, and prints. After which, we will take a 1.5-mile hike to observe habitats and, with luck, some wildlife. Registration required.Register .tribe-events-c-subscribe-dropdown{display:none;}
-
Step back in time and explore the fascinating world of early small engines — also known as hit-or-miss or skip motors — that once powered farms, mines, and more. Watch these historic machines in action, including a museum model that's more than 100 years old. Learn how they worked, what made them so reliable, and why they were essential to everyday life. Drop in anytime during the event — no registration required! |

