Stillwater County is in Yellowstone Country Montana. Of the 56 counties in Big Sky Country, 1,805-square-mile Stillwater County ranks 38th by size. Recent listings of ranches for sale in Stillwater County, Montana, totals roughly 3,000 acres and a combined market value of roughly $5 million. The most common type of land for sale by combined acreage in Stillwater County is undeveloped land. The average price of ranches for sale in Stillwater County was $3 million. Common game species to be found on ranches for sale in Stillwater County include mule deer, elk, whitetail deer, deer and antelope. For anglers the rivers and lakes on Stillwater County ranches for sale are stocked with fish including trout, pike, walleye, catfish and bass. Browse all Montana ranches for sale on the Land Network to find the ranch that's right for your business or commercial needs, from the sprawling legacy ranch to unbelievable residential ranch for your second home, investment property or retirement nest egg.