The Wyoming Territorial Prison's Cinco de Mato party takes place on May 5th after-hours from 5:30-7:30 p.m. at the Horse Barn Dinner Theatre on the State Territorial Prison grounds. The party includes Cinco de Mayo fixin's of burritos, chips, and salsa and a tasty Mexican dessert. There will be museum self-guided tours, piñatas, giveaways, and t-shirts as well.