A combined nearly 100,000 acres were listed for sale in Rosebud County, Montana, recently; the overall value of all Rosebud County land and rural real estate for sale was approximately $40 million. Rosebud County ranks 42nd based on the total amount of acres of land for sale of all the counties in the Treasure State. Forsyth had the most land for sale. Economically speaking, Rosebud County's is largely dependent on mining and mineral extraction-related businesses and services. Rosebud County is one of the ten largest counties in Montana (5,025 square miles). It's located in the Southeast Montana region of Montana.