Historical Place Museum
The Wyoming Territorial Prison State Historic Site near Laramie, Wyoming, was built in 1872 and served as a federal penitentiary until 1890, after which it became Wyoming’s first state prison until 1901.
During its operation, it housed over 1,000 inmates, including notorious outlaws like Butch Cassidy. The prison was known for strict rules following the Auburn Prison System, emphasizing silence, hard labor, and discipline, with punishments including solitary confinement in dark cells. After closing as a prison in 1903, the site was used by the University of Wyoming as an agricultural experiment station until 1989.
The prison was restored and opened to the public as a historic site in 1991, featuring the original prison building, the Prison Industries Building where inmates made brooms, and the warden’s house. The site, now a state historic park, offers tours, exhibits about prison life and rehabilitation, a nature trail along the Big Laramie River, picnic areas, and a visitor center with a gift shop.
It stands as a significant historical landmark that tells the story of Wyoming’s early penal history and territorial days.
| Address | 975 Snowy Range Rd, Laramie, WY 82070, United States |
| Opened | 1872 |
| Area | 6,070 m² |
| Architectural Styles | Italianate architecture, Queen Anne style architecture |
| Phone | +1 307-745-6161 |
Wyoming Territorial Prison State Historic Site is located in Wyoming, United States.
Wyoming Territorial Prison State Historic Site is situated in the state of Wyoming.
The main phone number for the Wyoming Territorial Prison State Historic Site is +1 307-745-6161.
The address of Wyoming Territorial Prison State Historic Site is 975 Snowy Range Rd, Laramie, WY 82070, United States.
Yes, Wyoming Territorial Prison State Historic Site is family-friendly and attracts visitors of all age groups.
Visitors usually spend a few hours to a full day exploring Wyoming Territorial Prison State Historic Site.
Yes, there are several hotels and accommodations near Wyoming Territorial Prison State Historic Site in Wyoming.
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Very interesting people have stayed here. The renovations are amazing. They still make brooms. We spent about two hours but had to leave as they were closing.
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Dec 19, 2025 Greg says :
Definitely worth the stop. Allow a couple of hours. Reasonable admission. Far more to see here than I expected.