Parks & Open Space

Name: Astronomy: The Ringed Giant at Its Best
Start: 2026-10-09T18:00:00-06:00
End: 2026-10-09T20:30:00-06:00
Location: Ron Stewart Preserve at Rabbit Mountain

October 2 at 5:00 pm - 7:00 pm

Boulder County Flora, Fauna, and People: Past, Present, and Future (1720-2120)

Pella Crossing 11600 N. 75th St., Longmont, CO

October 3 at 9:00 am - 12:00 pm

Take a Kid Mountain Biking Day

Heil Valley Ranch - Corral Trailhead 250 Geer Canyon Rd., Boulder, CO

October 3 at 9:00 am - 12:00 pm

Altona School Open House

Altona Schoolhouse

October 3 at 10:00 am - 5:00 pm

AHC Open

Agricultural Heritage Center 8348 Ute Hwy, Longmont, CO

October 3 at 10:30 am - 12:00 pm

The Geology of Sandstone Ranch

Sandstone Ranch 3001 CO-119, Longmont, CO

October 3 at 12:00 pm - 3:00 pm

Small Engine Day

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

October 4 at 10:00 am - 5:00 pm

AHC Open

Agricultural Heritage Center 8348 Ute Hwy, Longmont, CO

October 4 at 12:00 pm - 3:00 pm

Autumn Heritage Day and Vintage Baseball Game

Walker Ranch Homestead 7701 Flagstaff Rd., Boulder, CO

October 6 at 4:00 pm - 5:30 pm

Las Barracas Tour

Near Longmont.

October 7 at 6:00 pm - 7:00 pm

Evening at the Museum: Switzerland Trail Railroad

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

October 9 at 10:00 am - 5:00 pm

AHC Open

Agricultural Heritage Center 8348 Ute Hwy, Longmont, CO

October 9 at 6:00 pm - 8:30 pm

Astronomy: The Ringed Giant at Its Best

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