The Outlaw Trail Ended Here!

Prison photo


No need to commit a crime to do time at the territorial prison. Listed on the National Register of Historic Places, explore this 1872 imposing stone structure that held “evil doers of all classes and kinds.”  Built as a federal prison (1872-1890), it later became Wyoming’s state penitentiary (1890-1903). During these years, 1,063 malicious convicts walked through the iron doors and occupied the cells.



April 1st – 30th 8am to 5pm Monday – Saturday       Closed  Sundays

May 1st – September 30th 8am to 7pm Daily

Open on Memorial Day, Independence Day and Labor Day

October 1st – 31st 8am to 5pm Daily

We are open!! Hours: April 1st – 30th Monday – Saturday 8am to 5pm CLOSED on Sundays

Easy To Find Us!  Located just off Interstate 80 at exit 311.

 975 Snowy Range Road Laramie, WY 82070     (307) 745-3733

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 Bad Boys Behind Bars!


Supported by the Wyoming Territorial Prison Historic Association and  Wyoming State Parks & Cultural Resources