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)


*Rental cost is just the room. It does not include museum admission for play access, activities, or otherwise. 

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.