Charles Mound, Illinois |
 … the United States geodetic survey marker at the top of Charles Mound. The Illinois highpoint is 1,235 feet / 376 metres above sea-level, and is the 45th highest of the US state highpoints. |
Charles Mound, Illinois |
|
… the United States geodetic survey marker at the top of Charles Mound. The Illinois highpoint is 1,235 feet / 376 metres above sea-level, and is the 45th highest of the US state highpoints. |