Join volunteer naturalists for a moderate hike to explore and learn about the unique geology, history, plants, and wildlife of these beautiful properties. Groups are encouraged to join! Open water can be a refuge for many bird species in the winter and early spring. Join us as we walk around one of Boulder County’s birding hot spots looking for the open land raptors and winter residents. Registration for most programs begins on the 20th of the month before the event. Registration required. Register Registration is required through Discover Boulder County, Parks & Open Space’s volunteer and event registration system. If you’re new to the system, you'll need to create an account. But it’s easy and we only use your contact information to communicate about events you register for. We will never sell or give your information to a third party.

Let’s talk about our moon! We’ll discuss it’s craters and mountains, human interactions and its interactions with the sun and earth creating solar and lunar eclipses. Join volunteer naturalists to hike about one mile round-trip on an easy trail. Together we will discover the amazing mysteries of our night sky. Bring water, close-toed hiking shoes, and a flashlight. Space is limited. Registration for most programs begins on the 20th of the month before the event. Registration required. Register Registration is required through Discover Boulder County, Parks & Open Space’s volunteer and event registration system. If you’re new to the system, you'll need to create an account. But it’s easy and we only use your contact information to communicate about events you register for. We will never sell or give your information to a third party.

Come discover Harney-Lastoka Open Space! Whether you have visited many times, or this is your first visit, this program will reveal the Harney-Lastoka that you have never known. While taking a flat, 1.2-mile hike, we’ll tell stories, share fun facts, and explain the unique natural and cultural history of this open space property and development buffer located between Lafayette and Louisville. Adult Program (Ages 13 & older) Registration for most programs begins on the 20th of the month before the event. Registration required. Register Registration is required through Discover Boulder County, Parks & Open Space’s volunteer and event registration system. If you’re new to the system, you'll need to create an account. But it’s easy and we only use your contact information to communicate about events you register for. We will never sell or give your information to a third party.

Easy Hike. Spring forward and join us for a leisurely walk around the ponds at Pella Crossing where we will look for signs of spring’s return. Join volunteer naturalists in exploring the phenomena of the Spring Equinox and what makes spring the great awakening that it is. Registration for most programs begins on the 20th of the month before the event. Registration required. Register Registration is required through Discover Boulder County, Parks & Open Space’s volunteer and event registration system. If you’re new to the system, you'll need to create an account. But it’s easy and we only use your contact information to communicate about events you register for. We will never sell or give your information to a third party.

Bird nests range from a scrape on the ground to intricately woven hanging baskets. Join volunteer naturalists for an easy end of winter walk in search of some of these diverse structures created by amazing avian architects. All Ages Welcome Registration for most programs begins on the 20th of the month before the event. Registration required. Register Registration is required through Discover Boulder County, Parks & Open Space’s volunteer and event registration system. If you’re new to the system, you'll need to create an account. But it’s easy and we only use your contact information to communicate about events you register for. We will never sell or give your information to a third party.

Boulder County supports an amazing variety of grasses. The grass family is one of the most important and common plant families, yet grasses are often overlooked because some don’t regard them as very showy. But look closely and you’ll develop a new appreciation for these beautiful plants! Grasses provide critical food for people and wildlife, prevent soil erosion, and are heroes in the fight against climate change. Adult Program (Ages 13 & older) Registration for most programs begins on the 20th of the month before the event. Registration required. Register