Visit the Boulder County Ballot Measures website for information about 2025 ballot measures.

Share your feedback on Boulder County’s website by Friday, Oct. 3. Take the website survey.

Hikes & Events

Birding Big Sit

Walden Ponds Wildlife Habitat 3893 N. 75th St., Boulder, CO

Art in the Parks: Artistic Styles

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

Hammering On the Farm

Agricultural Heritage Center 8348 Ute Hwy, Longmont, CO

Birding Boulder County Through the Seasons

West Age Well Center for Older Adults 909 Arapahoe Rd., Boulder, CO, United States

Astronomy: A Planetary Lineup

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

Nature Detectives in the Field: Super Dragonflies

Walden Ponds Wildlife Habitat 3893 N. 75th St., Boulder, CO

Fall in the Foothills

Lyons Community Library 451 4th Ave, Lyons, CO

Fun on the Farm: Piñata, Piñata

Agricultural Heritage Center 8348 Ute Hwy, Longmont, CO

Gold Panning

Nederland Mining Museum 200 N. Bridge Street, Nederland, CO

Batty About Bats in Boulder County

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

Wander, Wonder, and Watercolor: A Nature Journaling Journey

Walden Ponds Wildlife Habitat 3893 N. 75th St., Boulder, CO

Small Engine Day

Nederland Mining Museum 200 N. Bridge Street, Nederland, CO