The Crazy Mountain Museum is a historical museum featuring exhibits that reflect the history of Sweet Grass County and the surrounding area. The museum is maintained by the Sweet Grass Museum Society, a non-profit organization. The Sweet Grass Museum Society has its roots in the Pioneer Society founded in the early 1900's. A permanent home was built and completed 1992 and named Crazy Mountain Museum. It is located south of Big Timber on Cemetery Road southeast of the west Interstate exit to Big Timber. The museum has evolved from a display facility located in a building on McLeod Street. In addition to displays, it now includes a research area, including a large master index for individuals mentioned in a wide variety of documents and pictures.

The Peter Yegen, Jr. Yellowstone County Museum in Billings collects, preserves, researches, and interprets the natural history and diverse cultures fo the Yellowstone Valley of Montana and the Northern Plains. The museum focuses on the prehistory of the plains through the 1950's. Exhibits include materials specific to ten Northern Plains Indian Tribes, western expansion, mining, cattle/sheep herding industries, transportation industries, military (1870-1950's), various medical fields, music, textiles, household goods and personal goods.

Step into history with a one-hour guided tour of the Moss Mansion Historic House Museum. The tour captures early turn-of-the-century life as the Preston Boyd Moss family lived it. Visitors see original draperies, fixtures, furniture, Persian carpets and artifacts displayed in the 1903 red sandstone structure. Designed by the New York architect, Henry Janeway Hardenbergh, designer of the original Waldorf Astoria, Plaza Hotels, Williard Hotel, and Copely Hotel. The home is listed on the National Register of Historic Places and is located in Billings.

The Western Heritage Center is a regional museum that interprets and reflects the life and culture of the Yellowstone River Valley. Located in downtown Billings in the former Parmly Billings Library, which is listed on the National Register of Historic Places, the Western Heritage Center cares for a collection of over 16,000 artifacts, including over 1,000 photographs that document the social history, architecture, public events and the development of the Yellowstone River Valley. Recent oral history projects have focused on interviews with elderly Yellowstone River Valley residents about farming and ranching activities, Crow and Northern Cheyenne women and Deaconess Billings Clinic personnel. This research will be used for future exhibits and publications. Scholars and students of history from throughout the United States have researched our archives and collection. The Western Heritage Press publishes material relating to the Yellowstone River Valley, including books, pamphlets and a guide to historic sites.

This 44-acre museum in Butte, Montana, preserves more than a century of American history and brings it to life. Explore more than 50 structures, ranging from the 100-foot-high headframe of the Orphan Girl Mine to a faithful recreation of a mining town, Hell Roarin' Gulch. Half of the displays focus on the cultural and ethnic history of an 1880s to 1920s mining town, while the other half provides you with a detailed look at the history of mining technology. As one of very few museums to occupy an actual historic mine site, they are uniquely able to portray the story of mining from earliest methods to modern techniques.

The Gallatin Historical Society, founded in 1977, moved into two rooms in the county jail building in 1979. Built in 1911, the jail was already considered an historic structure. When prisoners were moved to new quarters in January 1982, the county commissioners granted the Society use of the entire building for the Pioneer Museum. Since 1982, the Pioneer Museum has offered a variety of changing exhibits portraying earlier days in the Gallatin Valley. The Society sponsors various programs throughout the year, including the annual History Conference. The Society is also active with an ambitious outreach program, sending exhibits of photographs and artifacts to fairs, banks, schools, and conferences.

The Yellowstone Art Museum is located in Billings and houses a collection with an emphasis on Montant and surrounding regions.

The Association of Children’s Museums (ACM) is a professional member service organization for the children’s museum field. ACM is the only organization representing museums and professionals dedicated to early childhood play, the starting point in the continuum of lifelong learning. The Association promotes the impact children’s museums have in preparing children for school, building 21st century skills and nurturing a love for lifelong learning.

The Children's Museum of Montana is located in Great Falls and features lots of hands-on, interactive exhibits. Some museums ask their visitors not to touch the exhibits. "Look with your eyes, not with your hands," they say. That never happens at the Children's Museum of Montana. In fact, every exhibit in the entire museum is designed so that kids can touch, poke, raise, lower, push and examine to their hearts' content.

The Museum of the Rockies is the largest natural history museum in the region with 94,000 square feet under roof. It includes the only Digistar planetarium in the Northern Rockies and has developed a fully interpreted Living History Farm on 11 adjacent acres. Exhibits include the Hall of Horns and Teeth, One Day 80 Million Years Ago, the Bowman Fossil Bank, Enduring Peoples, Montana on the Move, the Martin Discovery Room, and many temporary exhibits. The museum is located on the south side of the Montana State University campus in Bozeman.

The American Computer Museum in Bozeman showcases the evolution of the information age with an emphasis on the United States. Their displays are designed to appeal to the beginner through the expert in computing. Over 1,000 artifacts are displayed in a timeline fashion.

This 44-acre museum in Butte, Montana, preserves more than a century of American history and brings it to life. Explore more than 50 structures, ranging from the 100-foot-high headframe of the Orphan Girl Mine to a faithful recreation of a mining town, Hell Roarin' Gulch. Half of the displays focus on the cultural and ethnic history of an 1880s to 1920s mining town, while the other half provides you with a detailed look at the history of mining technology. As one of very few museums to occupy an actual historic mine site, they are uniquely able to portray the story of mining from earliest methods to modern techniques.