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About - Wyoming Territorial Prison 


The Outlaw Trail ended here! 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 first as a Federal Prison (1872-1890), it later became Wyoming’s State Penitentiary (1890-1903). During the 30 years it was in operation, 1,063 malicious convicts (men and women) walked through the front iron doors and occupied the cells. Now a museum, visitors can walk the halls where convicts were locked up, worked and lived.





Outlaws, violent and desperate men (as well as women) plagued the Wyoming Territory. As settlers moved into the area they demanded law and order. The clash between Outlaws and Lawmen resulted in the building of the Territorial Prison. The Auburn Prison System was adopted to manage the prison population. Under this system convicts were sentenced to hard labor, required to be silent at all times, wear black and white striped uniforms, and their identities removed by replacing their names with numbers.


Site Status


The cell doors are open and ready. Please view our hours and Do Time With Us!



Now Open Year Round



May 1 – September 30

  • 8 a.m. to 7 p.m. - Daily
  • Open on Memorial Day, Independence Day and Labor Day

October 1 - October 6

  • 8 a.m. to 5 p.m. - Daily
  • Last Admission Ticket sold 1 hour before closing


New Winter Hours
(Starting Oct 7th, 2018)

October 7 – April 30

  • 10 a.m. to 3 p.m. (Wed - Sat)
  • Last Admission Ticket sold 1 hour before closing

The museum and site will be closed on the following holidays:

Thanksgiving (November 22 & 23)
Christmas (December 24 & 25)





 Wyoming Territorial Prison State Historic Site
 975 Snowy Range Rd
 Laramie, WY 82070

↪ Get Directions

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