The Marshall Building · Harlowton, Montana
Step inside the Upper Musselshell Museum and you never quite know what you'll find next. A full-size replica of a dinosaur skeleton unearthed near Shawmut. A sled hearse from Castle Town, still carrying its ghoulish passenger. Arrowheads from bison kill sites across the valley, alongside a Nez Perce exhibit. One of the largest collections of HO scale Milwaukee Road models in the country. A homestead cabin, the Rooms on the Ledge — kitchen, parlor, toy room, schoolroom — and a wall of photographs telling the story of Harlowton's earliest businesses.
The museum is housed in the Marshall Building, a two-story sandstone landmark built in 1908 that has been, in its time, a hardware store, a livery, a blacksmith shop, a J.C. Penney, and upstairs apartments. Today it holds the belongings, tools, and stories of the families who settled and shaped the Upper Musselshell River country — from the Plains tribes who hunted here, to the ranchers and railroaders who followed.
About the Museum →
Meet Ava
Avaceratops Lammersi, discovered north of Shawmut — the first of her kind, and one of 15 stops on the Montana Dinosaur Trail.
View exhibit →
Milwaukee Road Collection
The Pederson Collection — the largest set of HO scale Milwaukee Road models in the United States.
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Harlan Lucas Collection
Arrowheads, clothing, weapons, and artifacts from bison kill sites across the Upper Musselshell Valley.
View exhibit →Use our collections as a guide to explore the surrounding area: dinosaur trails, railroad landmarks, and ranching legacies that make this corner of Montana unique.
Montana Dinosaur Trail
The Upper Musselshell Museum is one of 14 stops on Montana's official Dinosaur Trail, home to "Ava" — Avaceratops Lammersi, the first of her kind discovered near Shawmut.
Visit the trail →
Harlowton Milwaukee Depot Museum
Housed in the historic Milwaukee Road depot building, this museum tells the story of the railroad era that put Harlowton on the map.
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Bair Family Museum
Located in Martinsdale, the Bair Museum preserves the home and remarkable art collection of Charles Bair, one of Montana's most celebrated sheep ranchers and entrepreneurs.
Visit the museum →
Harlowton Past & Present
From a lonely stage stop called Merino to the eastern terminus of the longest electrified railroad in North America - and the community that remains today.
Read the story →
Nez Perce National Historic Trail
Passing through the region, the 1,170-mile trail commemorates the 1877 flight of the Nez Perce from the their homelands through the mountains. Led by Chief Joseph and others, nearly 750 men, women, and children made the journey.
Visit the trail →
Railroads
A collection of articles, resources, and stories drawn from the railroads that crossed the region and beyond.
Learn More →Membership
Join the Upper Musselshell Historic Society and help us continue preserving and evolving the Valley's history for future generations. Membership involves you in our historical quest and allows us to include new ideas and technology in our day-to-day operations.
Donations
We are a non-profit organization. All gifts of cash and items are tax deductible.
Upon request, we'll provide a confirmation letter and a copy of our IRS tax-exempt
notice.
Contact us at (406) 632-5519 or
museum@mtintouch.net.