Discover one of Montana's best kept secrets in Musselshell County, with Roundup as the County Seat. A Search form is available:

Contact Form & Map

Call or submit our online form for general questions, submitting alerts, or more info about Musselshell County services. We look forward to serving you!


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Musselshell County Courthouse

Phone: 406-323-1104
Fax: 406-323-3303

506 Main Street
Roundup, MT 59072

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