Stone County is located in the Ozark Mountains in the U.S. state of Arkansas. The county is named for the rugged, rocky area terrain of the Ozarks. Created as Arkansas's 74th county on April 21, 1873, Stone County has two incorporated cities: Mountain View, the county seat and most populous city, and Fifty-Six. The county is also the site of nume…Stone County is located in the Ozark Mountains in the U.S. state of Arkansas. The county is named for the rugged, rocky area terrain of the Ozarks. Created as Arkansas's 74th county on April 21, 1873, Stone County has two incorporated cities: Mountain View, the county seat and most populous city, and Fifty-Six. The county is also the site of numerous unincorporated communities and ghost towns.