Darke County is located in the southwestern part of Ohio, bordered by Indiana to the west. It is known for its rural landscape, featuring farms, small towns, and natural parks. The county seat is Greenville, which has historical significance as the site of the Treaty of Greenville in 1795. The county is home to several attractions, including the Garst Museum, which showcases local history and artifacts. Darke County also hosts various annual events, such as the Darke County Fair, which celebrates agriculture and community. The area offers outdoor recreational opportunities, including hiking and fishing in its parks and waterways.