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Bagley school band  from Ann Carroll Mit

Visit Beaverhead County Museum

History of Dillon & Beaverhead County

 At Beaverhead County Museum, we aspire to be more than simply a collection of unique objects. We are devoted to creating a living, interactive learning experience through events and exhibitions. Come explore the history of Beaverhead County with us.

Beaverhead County Museum

Beaverhead County Museum

Self-Guided Tour

We offer visitors a way to experience the exhibits in three easy steps: 1. download a QR Scanner App from your app store (this should be free) 2. Scan the QR code in the museum. 3. Enjoy the Tour!

Barn on the P&O Rahnc_edited.jpg
Model T's early 1900s.jpg

Poindexter & Orr

The partners Phillip Poindexter and William Orr moved their business to Beaverhead County. The P&O ranch recorded the first brand in Montana Territory, the square and compass. 

Ranch History Saddles

History of the Museum

Thanks to some forward thinking women the museum now is a place that holds Dillon and Beaverhead County History for generations to come.

History Beaverhead County Ranches


Dillon was founded in 1880 when the Utah and Norther Railroad came through the area. When it  reached the ranch of Mr. Deacon he would not sell to the railroad. 

On September 13, 1880, the Dillon townsite group assembled at Deacon's ranch. The deed for the property was recorded in the county courthouse in Bannack on September 16, 1880. The instant town of Dillon took shape.


Museum Closed

from January to April 2024 

Office Hours: Monday - Friday January through April 10 am to 4 pm

Research hours: Monday, Tuesday and Wednesday 1 pm to 4 pm

Museum is only open by appointment only during the winter season.

To reserve the Old Depot Theatre Call or email. 

For more information:

(406) 683-5027


Women Suffragettes on Idaho St looking South 1914 corner of Bannack & Idaho.jpg
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