A combined almost 100,000 acres were listed for sale in Musselshell County recently; the combined value of all Musselshell County farms and ranches for sale was approximately $81 million. Musselshell County ranks 22nd based on the total amount of acres of land for sale among all the counties in the Treasure State. Among cities in Musselshell County with farms, ranches, and rural real estate for sale, Roundup had the most land for sale. Economically speaking, Musselshell County's is largely dependent on mining and mineral extraction-related businesses and services. Musselshell County is the 35th largest county (1,871 square miles) in Montana. It's located in the Southeast Montana region of Montana.