The part of the department south of the River Loire is known as the Sologne and is an area of heathland and marshland, interspersed by hills where vines are grown. The eastern part of the department is known as Gâtinais and was part of a province of that name. Until the beginning of the 21st century, it used to be renowned for the production of saffron, but the crop could not be mechanised, and production dwindled as the cost of production became too high.