premise: Mineral County Airport (FAA LID: 9S4) is a county-owned public-use airport located two nautical miles (3.7 km) southeast of the central business district of Superior, a town in Mineral County, Montana, United States. According to the FAA's National Plan of Integrated Airport Systems for 2011-2015, it is categorized as a "general aviation" facility.
hypothesis: Mineral County Airport is in the southern hemisphere.
reason: Mineral County Airport is in the eastern hemisphere.