Important Member Update
Exciting news: the Chamber is moving to a new member platform, GrowthZone! Longmont Chamber members will receive an email soon to update their login and directory listing. The new system goes live November 1, 2025. Learn more about the transition here.

Callahan Spring Open House
Spring Open House
Free and open to the public. No registration required.
Learn about local history at one of Longmont’s most treasured historic sites. Self-tour through Callahan House with handouts and historical information provided.
At the Spring Open House:
Learn how you can make an impact! Callahan House is unveiling a new program with opportunity for individuals and organizations to take a special role in supporting preservation and restoration of this historic gem in the heart of Longmont.
Date and Time
Thursday Apr 24, 2025
5:00 PM - 7:00 PM MDT
Fees/Admission
Free and open to the public. No registration required.
Website
Contact Information
Callahan House
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