3rd Annual Monster Mash

Welcome to this year's thrilling Monster Mash event! Monster Mash is an indoor Trunk or Treat Event! Encounter businesses & individuals from our community, with their own decorated tables, waiting to shower you with sweet treats and eerie surprises.

Dress up in your favorite costume & get ready for the biggest indoor Trick or Treat Event of the year!

Cost: Free to attend & participate —donations welcome to support the Black Hills Children's Museum Project.

Who can decorate a table? Anyone! (Community members, businesses, organizations/non-profits etc.) No selling of any goods, foods, products, or services.

Join the fun and sign up today!
We truly appreciate your dedication to helping create an exciting, family-friendly atmosphere. Your participation plays a vital role in making this event an unforgettable experience for everyone involved! Deadline to sign up is Sunday, Oct. 12th, 2025.

Sign up here: https://forms.office.com/r/hx7wQLBPvR

You may also like the following events from City of Box Elder, SD:

• Next month, 13th September, 03:00 pm, Salute to Ellsworth (formally known as Patriot Day) in Box Elder
• This December, 11th December, 05:00 pm, Winter Wonderland and Parade of Trees in Rapid City