Land for sale in Rosebud County recently totaled nearly $34 million and 100,000 acres. Rosebud County ranks 41st based on the total acres of land for sale of the 56 counties in Big Sky Country. Among cities in Rosebud County with land and rural real estate for sale, Forsyth featured 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.