FSX/Prepar3D – Cheboygan County Airport (KSLH), MI, USA. Cheboygan County is a county in the US state of Michigan. As of the 2010 census, the population was 26,152. The county seat is Cheboygan. The name of the county shares the same origin as that of the Cheboygan River, although the precise meaning is no longer known. It may have come from an Ojibwe word zhaabonigan meaning “sewing needle”. Alternatively, the origin may have been “Chabwegan,” meaning “a place of ore”. It has also been described as “a Native American word first applied to the river. Installer and pics inside. By Fernando Angel Gonzalez.