Untamed & Boo 2026: Cody Yellowstone Unveils Halloween Carnival, Downtown Trick-Or-Treat and More Spooky Season Happenings

In Cody Yellowstone, ghost stories aren’t just for Halloween. At Buffalo Bill’s historic Irma Hotel, tales of a phantom cavalry soldier, a rocking chair with a mind of its own and even Buffalo Bill himself have kept visitors guessing for years.

But you don’t need a paranormal encounter to get into the Halloween spirit around here. From murder mysteries and costume parties to corn mazes and downtown trick-or-treating, Cody Yellowstone has plenty of mischief planned for 2026. Here are a few ways to join the fun.

When: Friday, Oct. 23, 2026 from 7:30-10 p.m.

Where: The Chamberlin Inn

Downtown Cody’s historic boutique hotel, The Chamberlin Inn, will host a murder mystery night, complete with live actors, clue booklets and prizes. Each $80 ticket includes wine from Mustang Mountain Vineyard and appetizers from Zappie’s Cucina. Check-in starts at 7:30 p.m., and the mystery begins at 7:45 p.m., providing 90 minutes to crack the case until last call at the open bar at 9:30 p.m. Costumes are encouraged! To reserve a seat, call Sales & Events Manager Amie Sharp at (307)-254-7043. Staying overnight? Mention “Murder Mystery Night” when booking your stay to receive 15% off the hotel’s best available rate.

The HAUNT

When: Saturday, Oct. 24, 2026 at 7 p.m. (pre-reserved tickets grant entry at 6 p.m., one hour before general admission)

Where: Olive Glenn Golf Club

Cody’s costume party of the year, The HAUNT is an experiential Halloween party and fundraising event benefitting CodyArts, a local non-profit arts organization that provides a space for Park County citizens to create and learn about the visual arts. The annual celebration includes a buffet, cash bar, DJ and costume party with a $1,000 grand prize! General admission starts at $50, and pre-reserved tickets are priced at $125 per person.

Hootin’ Howlin’ Halloween

When: Friday, Oct. 30 from 2-5 p.m.

Where: Buffalo Bill Center of the West

For a Halloween bash that’s fit for all ages, stop by the Buffalo Bill Center of the West’s Hootin’ Howlin’ Halloween for an action-packed afternoon of activities, crafts, candy and spooky stories! Attendees can show off their costumes while they explore the museum, decorate trick-or-treat bags, weave through a sneaky spiderweb obstacle course, compete in witch hat ring toss and get on the dance floor for a Halloween dance party. The event is $5 per person or $15 for the whole family, and members get in free. Interested in becoming a member? Attend Hootin’ Howlin’ Halloween to be entered for a chance to win a Family Membership!

Halloween Carnival

When: Friday, Oct. 30 from 6-7:30 p.m.

Where: Paul Stock Aquatic and Recreation Center

Visit the Paul Stock Aquatic and Recreation Center for a family-friendly Halloween Carnival, complete with carnival games, a cookie walk, photo booth and an official costume contest. Costume judges will roam around the carnival, and prizes in a variety of different categories will be awarded at the end of the event. The carnival is $4 per person if you pay ahead of time, $6 per person at the door and free for adults and children under two.

The Gallagher Corn Maze and Pumpkin Patch

When: Fridays from 1 p.m. to dark, Saturdays from 11 a.m. to dark and Sundays from 1 p.m. to dark, through Oct. 31

Where: Out Belfry HWY, turn onto Rd. 1 AB (left at Edelweiss)

On weekends through Halloween, Gallagher’s Corn Maze & Pumpkin Patch welcomes guests to experience their two-acre pumpkin patch and six-acre corn maze in Clark, Wyoming. Fun for all ages, Gallagher’s Corn Maze & Pumpkin Patch includes a hay bale maze for younger children, hay bale slide, shelled corn pit and a concession stand featuring Gallagher’s own natural beef burgers and brats. For guests ages three and up, tickets are just $8 per person, and children two and under are free.

5^th Annual Jim Beavers Memorial Graveyard Gallop 10K/5K/1 Mile Run/Walk

When: Saturday, Oct. 31 at 10 a.m.

Where: 699 Ln 9, Powell, WY

On Halloween morning, The Homesteader Museum will host the 5^th Annual Jim Beavers Memorial Graveyard Gallop 10K/5K/1 Mile Run/Walk. Each race begins at 10 a.m. and runs directly past Crown Hill Cemetery along the aptly named Cemetery Road. Participants are encouraged to wear their costumes or Green Bay Packers gear (Jim’s favorite team!). Registration starts at $10 per person, and all funds raised go to the Homesteader Museum Association, Inc. to support children’s scholarships for museum workshops and professional development training.

Downtown Trick-or-Treats in Cody and Powell

When: Friday, Oct. 30 (Powell) and Saturday, Oct. 31, from 4-6 p.m. (Cody)

Where: Downtown Powell and downtown Cody

Cody’s beloved downtown trick-or-treat returns this year on Saturday, Oct. 31. Merchants and downtown businesses along Sheridan Avenue will welcome trick-or-treaters from 4-6 p.m. To enjoy two nights of Halloween fun (and two bags of candy), visit downtown Powell the day before on Friday, Oct. 30 to trick-or-treat with participating businesses.