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Musselshell County

Musselshell County is named for the Musselshell River which was named by the Lewis and Clark Expedition due to mussels found on the banks of the river.


Surrounding County Courthouses: 

N – Fergus County and Petroleum County

E – Rosebud County and Treasure County

S – Yellowstone County

W – Golden Valley County


Created:  February 11, 1911                   Map of Montana highlighting Musselshell County

County Seat: 

Roundup  1911 – present


County Courthouse – Roundup 


Location:  506 Main Street / 5th Avenue East

Built:  1939 – 1940

Style:  Art Deco

Architect:  J G Link of Billings

Contractor:  Lovering Construction Company of St. Paul, Minnesota


Description:  The building faces west and is a two story dark red colored brick and concrete structure. The building is located on landscaped grounds in the center of Round Up. The west front of the rectangular shaped building has a projecting center section with six vertical concrete pillars with the entrance at the center. The roof line is flat. The building houses the County District Court of the 14th Judicial District and County Justice Court. 


See:  The architect, John G Link of Montana ( in association with Charles S Haire  and others ) designed courthouses in Montana in Big Horn County, Carter County, Custer County, Dawson County, Granite County, McCone CountyRichland County, Rosebud County, Sheridan County and Silver Bow County; in Oregon in Jackson County and in Wyoming in Park CountySheridan County and Washakie County.


See:  The 14th Judicial District includes Golden Valley CountyMeagher County, Musselshell County and Wheatland County.


History:  The county was created in 1911 and Round Up was selected as the county seat. The first courthouse was a two story rectangular structure. The second and present courthouse was constructed in 1939 to 1940.



County Courthouse – Roundup











Commissioner Minutes – contractor



Photos taken 2011