The celebration occurring annually on October 31st, which features activities and gatherings focused on themes of costumes, candy, and sometimes spooky or macabre entertainment, is widely observed in this Rocky Mountain state. These happenings can range from family-friendly trick-or-treating in residential neighborhoods to elaborate haunted houses and adult-oriented costume parties. Numerous businesses and organizations also sponsor seasonal programs centered on this popular holiday.
Such celebrations offer a significant boost to local economies, as residents and tourists alike participate in associated spending. The history of these occurrences within the state mirrors the broader American traditions of incorporating elements from both pagan harvest festivals and European folklore. Further, they provide opportunities for communities to unite through shared experiences and creative expression.