A total of nearly 100,000 acres were listed for sale in Big Horn County recently, representing a combined approximately $129 million in Big Horn County farms and ranches for sale. Big Horn County ranks 32nd based on the combined acreage of land for sale among all the counties in Montana. Of all locations in Big Horn County with land and rural real estate for sale, Hardin had the most land for sale. Economically speaking, Big Horn County's is largely dependent on mining and mineral extraction-related businesses and services. Big Horn County is one of the ten largest counties in Montana (5,016 square miles). It's located in the Southeast Montana region of Montana.