The community's name is based on its proximity to the Continental Divide. As a station on the Union Pacific Railroad, Divide served as a distribution and stock shipping point for ranchers in the Big Hole Valley.
Divide is located in the valley of the Big Hole River surrounded by Montana's Pioneer Mountains. The Big Hole River and its creek tributaries provide irrigation for agriculture as well as habitat for several species of trout which support a recreational fishery. Divide is crossed by Interstate 15 and Montana State Highways 43 and 91, as well as the Union Pacific Railroad, although it is no longer served by a station. The population in 2010 was 221 people.
Divide is an important setting for Reif Larsen's novel The Selected Works of T.S. Spivet. It is the home of the central character and the beginning of his hobo railroad journey across the United States. The community's location on the continental divide serves as a major piece of symbolism in the novel.
- "Divide, Montana". Geographic Names Information System. United States Geological Survey.
- Moyer, Armond; Moyer, Winifred (1958). The origins of unusual place-names. Keystone Pub. Associates. p. 36.
- "ZIP Code 59727", U.S. Census website, United States Census Bureau
- Climate Summary for Divide, Montana
- Fran Arrieta-Walden, "Review: The Selected Works of T.S. Spivet" Oregon Books
- "Divide", Montana Official Travel Site
- Cheney's Names on the Face of Montana, Mountain Press Publishing Company