The total value of farms and ranches for sale in Rosebud County, Montana, recently on Land.com was approximately $34 million. This represents around 100,000 acres of ranches, farms, hunting land and other rural land and acreage for sale in Rosebud County. Rosebud County ranks 43rd in Big Sky Country based on the total 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 biggest counties in Montana (5,025 square miles). It's located in the Southeast Montana region of the state.