Citywide Calendar

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Welcome to Longmont's Calendar of Events!

The events listed on this Calendar are City of Longmont sponsored events and is not a comprehensive list of all activities happening around the community. Dates and times of these events are subject to change without notice.

Trash, Recycling, & Composting - Holidays & Events

View via the address-based Online Collection Calendar and sign up for reminders.

Other Community Events

To view other events being held around Longmont, please visit the Longmont visitors bureau events calendar at

Subscribe to the City Calendar

To get events emailed to you directly, sign up for the Calendar eNotifications and then select the Calendar categories.

Tuesday Treasures at the Ranch

May 22 through August 28

  • Date: 06/19/2018 9:00 AM - 12:00 PM
  • Location: Sandstone Ranch Visitors & Learning Center
    3001 Sandstone Drive
    Longmont, Colorado 80504
  • Introduction: Join us each Tuesday for information, examples, and free activities for themes relating to Sandstone Ranch. All ages welcome.

Tuesday Treasures at the Ranch

Tables will be set up from 9am-noon with information, examples and activities for kids and adults about themes relating to Sandstone Ranch. Weekly themes:

  • 1st Tuesday: Earth and Sky
  • 2nd Tuesday: Feathered Friends
  • 3rd Tuesday: History (Tour at 10am)
  • 4th Tuesday: Critters Warm & Cold
  • 5th Tuesday: Predators & Prey 

No registration needed.  Questions? Call 303-774-4692.

Location / Directions

Sandstone Ranch Visitors & Learning Center
3001 Sandstone Drive, Longmont, CO 80504

To get to Sandstone Ranch from Longmont, go east on Ken Pratt Boulevard / Highway 119, past the intersection of Weld County Road (WCR) 1. The ballpark facilities are located on the south side of the road, 1/2 mile east of WCR 1. The Visitors & Learning Center, sports field complex, skate park, adventure playground and picnic shelter are also located on the south side of the road, 1 mile east of WCR 1.  View pdf map.

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