Boulder County Community Survey: Some residents will receive a text message over the next two weeks asking them to take a survey.

Boulder County government offices closed Thursday, Nov. 27, and Friday, Nov. 28, for the Thanksgiving holiday.

Carlos Lerma

Hikes for Seniors – Nature’s Nursery: Calving Cows and Life Cycles of the Ungulates

Mud Lake 2034 County Rd 126, Nederland, CO

CANCELED: Waking up in Nature: A Mindfulness Hike to Greet Spring

Heil Valley Ranch - Wapiti Trailhead 1188 Geer Canyon Rd., Boulder

City Nature Challenge – Louisville & Lafayette Bioblitz

Louisville Community Park 955 Bella Vista Dr., Louisville, CO

Scales on the Trail: Demystifying the Rattlesnake

Ron Stewart Preserve at Rabbit Mountain 14950 N. 55th St., Longmont, CO

Astronomy: Night Sky Neighbors

Ron Stewart Preserve at Rabbit Mountain 14950 N. 55th St., Longmont, CO

Biodiversity in Boulder County: Past, Present & Future

Ron Stewart Parks & Open Space Building 5201 St Vrain Rd, Longmont, CO

A Butterfly’s Life Slideshow Program

Louisville Public Library 951 Spruce Street, Louisville, CO

Canceled: Caminata con Mama: Bilingual Wildflower Hike

Bald Mountain 4241 Sunshine Canyon Dr, Boulder, CO

Foothills Geology Hike

Heil Valley Ranch - Wapiti Trailhead 1188 Geer Canyon Rd., Boulder

Nature Detectives in the Field: Rain Drop Racing – Following our Water’s Path

Ron Stewart Preserve at Rabbit Mountain 14950 N. 55th St., Longmont, CO

Hikes for Seniors — A Microworld: Wildflowers & Pollinators

Walker Ranch Meyers Gulch Trailhead 7325 Flagstaff Rd., Boulder, CO

Discover Hall Ranch

Hall Ranch 31635 CO Hwy 7, Lyons, CO