Buttressing the U.S.-Canada border and including a large swath of Bighorn National Forest, Sheridan County is an area of prairie and tillable land. Indeed, the ancient mineral deposits from glaciers here make the region's soil richly fertile for small grain production. Based on U.S. Census data, over 95 percent of Sheridan County land incorporates farmland. Sheridan County is in Missouri River Country Montana. Of the 56 counties in Big Sky Country, 1,704-square-mile Sheridan County ranks 41st by size. By overall acreage, residential property is the most common type of land for sale in Sheridan County. Browse all residential property and land for sale in Sheridan County to find residential land and properties that suit your lifestyle needs, from existing residential homes and estates to land ready for future residential-property development.