Monster Mash

Get ready for a spooktacular evening of Halloween fun at The Box Elder Events Center! Monster Mash is an indoor Trick or Treat Event hosted by the City of Box Elder! Encounter businesses & individuals from our community, with their own decorated tables, waiting to shower you with sweet treats and eerie surprises. Venture through the haunted maze, brave the spooky tunnel, and enjoy frightful encounters designed for ghosts, goblins, and monsters of all ages. Costumes are encouraged, and plenty of treats await throughout the evening during the biggest indoor Trick or Treat Event of the year! Deadline to sign-up is Sunday, October 18, 2026. Who can decorate a table? Anyone! (Community members, businesses, organizations/non-profits etc.) No selling of any goods, foods, products, or services. *This event is organized and managed by the City of Box Elder and is being held at The Box Elder Events Center. For event questions, vendor registration, participation details, or sponsorship inquiries, please contact the City of Box Elder directly.