Keystone is a populated place located in Benton County, Iowa. It appears on the Keystone South USGS 7.5-minute topographic quadrangle. The elevation at this location is approximately 882.55 feet (269.00 m) above sea level.
Benton County · Iowa
Keystone is a populated place located in Benton County, Iowa. It appears on the Keystone South USGS 7.5-minute topographic quadrangle. The elevation at this location is approximately 882.55 feet (269.00 m) above sea level.