CMOM Rental Options

Cosgrove's Corner

Banquet Room Great For Meetings, Engagement Parties, Wedding and Baby Showers, Gender Reveal Parties, End of School year, Graduation parties, and More!


  • Banquet Tables and Chairs for up to 100 guests

  • Room Rental and Kitchen Access


  • Monday-Friday (9:30 am-5:00 pm): *$25/hour, $25 deposit with no kids and $100/hour, $50 deposit to book for up to 15 kids. (put towards total usage cost)


  • Weekend and After Hours Bookings: $100/hour, $50 deposit to book (put towards total usage cost)


Full Building Rental

For more information on renting out the whole Museum for a party or event, please email us at or call us at (406)452-6661.

For Nonprofits

We'd love to work with you! As a nonprofit ourselves, we want to build a relationship with others in our community and foster an environment of understanding and support. Nonprofits with a valid Tax ID Number can utilize our banquet and party rooms at NO COST.


Please call us for more information.

Business Members - 

As members you are allowed to use the banquet room at no charge during regular business hours and for $100 per hour for after hours.