Located in two historic buildings, the Upper Musselshell Museum covers a wide range of topics, from geology to Montana's railroading history. The Times Building (11 South Central) was built in 1909 and housed several businesses including a bank; the second floor was apartments. The Marshall Building (36 South Central) also housed various businesses, including a hardware store and even a J.C. Penney. The museum features exhibits on the cattle and agricultural industries, period rooms furnished by local families, military history, schools, medicine, and of course the railroads which were key to the state's development. There is also a replica skeleton of the Avaceratops dinosaur as well as other (real) dinosaur fossils. Another highlight is the largest collection of HO scale Milwaukee Road models in the country.