Frontier Gateway Museum is historical in content beginning with prehistoric times continuing into the 21st century. It includes seven buildings on an acre of land.
Major displays in the main building include fossils, Native American artifacts, homesteaders, cattlemen, settlers, and railroad.
Merrill West , a re-creation of early Glendive stores with names of some of the earliest shops in Glendive, including the Glendive Times, the Bee Hive Store (with a large orignial cash register), the Douglas Meed general store and the ladies' ready -to-wear, Kepp Boertsch Co. There is also a telephone exhibit and a mounted animal display.