Callahan House Summer 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 Open House:

Learn how you can make an impact! Callahan House is offering 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.